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Finding the Fourth Proportional to 17,876.67, 24,669.47 and 9,918.73

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Solution

The fourth proportional to 17,876.67, 24,669.47 and 9,918.73 is: 13,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,876.67 : 24,669.47 = 9,918.73 : x
  2. Step 2: Convert to fraction form
    17,876.67/24,669.47 = 9,918.73/x
  3. Step 3: Cross multiply
    17,876.67x = 24,669.47 × 9,918.73
  4. Step 4: Simplify right side
    17,876.67x = 244,689,688.83
  5. Step 5: Solve for x
    x = 244,689,688.83/17,876.67
  6. Step 6: Final answer
    x = 13,687.65

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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.