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Finding the Fourth Proportional to 9,190,870.20, 13,786,305.30 and 9,190,870.20

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Solution

The fourth proportional to 9,190,870.20, 13,786,305.30 and 9,190,870.20 is: 13,786,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190,870.20 : 13,786,305.30 = 9,190,870.20 : x
  2. Step 2: Convert to fraction form
    9,190,870.20/13,786,305.30 = 9,190,870.20/x
  3. Step 3: Cross multiply
    9,190,870.20x = 13,786,305.30 × 9,190,870.20
  4. Step 4: Simplify right side
    9,190,870.20x = 126,708,142,549,872.06
  5. Step 5: Solve for x
    x = 126,708,142,549,872.06/9,190,870.20
  6. Step 6: Final answer
    x = 13,786,305.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.