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Finding the Fourth Proportional to 17,663.40, 24,378.84 and 10,951.74

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Solution

The fourth proportional to 17,663.40, 24,378.84 and 10,951.74 is: 15,115.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,663.40 : 24,378.84 = 10,951.74 : x
  2. Step 2: Convert to fraction form
    17,663.40/24,378.84 = 10,951.74/x
  3. Step 3: Cross multiply
    17,663.40x = 24,378.84 × 10,951.74
  4. Step 4: Simplify right side
    17,663.40x = 266,990,717.18
  5. Step 5: Solve for x
    x = 266,990,717.18/17,663.40
  6. Step 6: Final answer
    x = 15,115.48

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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.