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Finding the Fourth Proportional to 62,666.87, 93,981.67 and 18,281.70

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Solution

The fourth proportional to 62,666.87, 93,981.67 and 18,281.70 is: 27,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,666.87 : 93,981.67 = 18,281.70 : x
  2. Step 2: Convert to fraction form
    62,666.87/93,981.67 = 18,281.70/x
  3. Step 3: Cross multiply
    62,666.87x = 93,981.67 × 18,281.70
  4. Step 4: Simplify right side
    62,666.87x = 1,718,144,650.73
  5. Step 5: Solve for x
    x = 1,718,144,650.73/62,666.87
  6. Step 6: Final answer
    x = 27,417.12

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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.