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Finding the Fourth Proportional to 17,721.09, 24,454.85 and 9,763.11

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Solution

The fourth proportional to 17,721.09, 24,454.85 and 9,763.11 is: 13,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721.09 : 24,454.85 = 9,763.11 : x
  2. Step 2: Convert to fraction form
    17,721.09/24,454.85 = 9,763.11/x
  3. Step 3: Cross multiply
    17,721.09x = 24,454.85 × 9,763.11
  4. Step 4: Simplify right side
    17,721.09x = 238,755,341.77
  5. Step 5: Solve for x
    x = 238,755,341.77/17,721.09
  6. Step 6: Final answer
    x = 13,472.95

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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.