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Finding the Fourth Proportional to 62,845.56, 86,729.10 and 34,553.40

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Solution

The fourth proportional to 62,845.56, 86,729.10 and 34,553.40 is: 47,684.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,845.56 : 86,729.10 = 34,553.40 : x
  2. Step 2: Convert to fraction form
    62,845.56/86,729.10 = 34,553.40/x
  3. Step 3: Cross multiply
    62,845.56x = 86,729.10 × 34,553.40
  4. Step 4: Simplify right side
    62,845.56x = 2,996,785,283.94
  5. Step 5: Solve for x
    x = 2,996,785,283.94/62,845.56
  6. Step 6: Final answer
    x = 47,684.92

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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.