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Finding the Fourth Proportional to 11,691.38, 16,150.38 and 10,432.01

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Solution

The fourth proportional to 11,691.38, 16,150.38 and 10,432.01 is: 14,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.38 : 16,150.38 = 10,432.01 : x
  2. Step 2: Convert to fraction form
    11,691.38/16,150.38 = 10,432.01/x
  3. Step 3: Cross multiply
    11,691.38x = 16,150.38 × 10,432.01
  4. Step 4: Simplify right side
    11,691.38x = 168,480,925.66
  5. Step 5: Solve for x
    x = 168,480,925.66/11,691.38
  6. Step 6: Final answer
    x = 14,410.70

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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.