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Finding the Fourth Proportional to 17,737.61, 24,478.07 and 9,780.12

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Solution

The fourth proportional to 17,737.61, 24,478.07 and 9,780.12 is: 13,496.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,737.61 : 24,478.07 = 9,780.12 : x
  2. Step 2: Convert to fraction form
    17,737.61/24,478.07 = 9,780.12/x
  3. Step 3: Cross multiply
    17,737.61x = 24,478.07 × 9,780.12
  4. Step 4: Simplify right side
    17,737.61x = 239,398,461.97
  5. Step 5: Solve for x
    x = 239,398,461.97/17,737.61
  6. Step 6: Final answer
    x = 13,496.66

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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.