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Finding the Fourth Proportional to 16,618.50, 22,931.73 and 9,545.94

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Solution

The fourth proportional to 16,618.50, 22,931.73 and 9,545.94 is: 13,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.50 : 22,931.73 = 9,545.94 : x
  2. Step 2: Convert to fraction form
    16,618.50/22,931.73 = 9,545.94/x
  3. Step 3: Cross multiply
    16,618.50x = 22,931.73 × 9,545.94
  4. Step 4: Simplify right side
    16,618.50x = 218,904,918.68
  5. Step 5: Solve for x
    x = 218,904,918.68/16,618.50
  6. Step 6: Final answer
    x = 13,172.36

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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.