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Finding the Fourth Proportional to 5,798.80, 8,002.40 and 3,146.23

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Solution

The fourth proportional to 5,798.80, 8,002.40 and 3,146.23 is: 4,341.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,798.80 : 8,002.40 = 3,146.23 : x
  2. Step 2: Convert to fraction form
    5,798.80/8,002.40 = 3,146.23/x
  3. Step 3: Cross multiply
    5,798.80x = 8,002.40 × 3,146.23
  4. Step 4: Simplify right side
    5,798.80x = 25,177,335.21
  5. Step 5: Solve for x
    x = 25,177,335.21/5,798.80
  6. Step 6: Final answer
    x = 4,341.82

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.