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Finding the Fourth Proportional to 17,663.70, 24,370.95 and 10,949.61

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Solution

The fourth proportional to 17,663.70, 24,370.95 and 10,949.61 is: 15,107.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,663.70 : 24,370.95 = 10,949.61 : x
  2. Step 2: Convert to fraction form
    17,663.70/24,370.95 = 10,949.61/x
  3. Step 3: Cross multiply
    17,663.70x = 24,370.95 × 10,949.61
  4. Step 4: Simplify right side
    17,663.70x = 266,852,397.83
  5. Step 5: Solve for x
    x = 266,852,397.83/17,663.70
  6. Step 6: Final answer
    x = 15,107.39

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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.