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Finding the Fourth Proportional to 6,171,853.60, 8,619,337.40 and 6,171,853.60

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Solution

The fourth proportional to 6,171,853.60, 8,619,337.40 and 6,171,853.60 is: 8,619,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,171,853.60 : 8,619,337.40 = 6,171,853.60 : x
  2. Step 2: Convert to fraction form
    6,171,853.60/8,619,337.40 = 6,171,853.60/x
  3. Step 3: Cross multiply
    6,171,853.60x = 8,619,337.40 × 6,171,853.60
  4. Step 4: Simplify right side
    6,171,853.60x = 53,197,288,561,804.64
  5. Step 5: Solve for x
    x = 53,197,288,561,804.64/6,171,853.60
  6. Step 6: Final answer
    x = 8,619,337.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.