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Finding the Fourth Proportional to 62,866.12, 86,755.86 and 34,572

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Solution

The fourth proportional to 62,866.12, 86,755.86 and 34,572 is: 47,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,866.12 : 86,755.86 = 34,572 : x
  2. Step 2: Convert to fraction form
    62,866.12/86,755.86 = 34,572/x
  3. Step 3: Cross multiply
    62,866.12x = 86,755.86 × 34,572
  4. Step 4: Simplify right side
    62,866.12x = 2,999,323,591.92
  5. Step 5: Solve for x
    x = 2,999,323,591.92/62,866.12
  6. Step 6: Final answer
    x = 47,709.70

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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.