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Finding the Fourth Proportional to 38,658.24, 57,987.90 and 10,956.24

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Solution

The fourth proportional to 38,658.24, 57,987.90 and 10,956.24 is: 16,434.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,658.24 : 57,987.90 = 10,956.24 : x
  2. Step 2: Convert to fraction form
    38,658.24/57,987.90 = 10,956.24/x
  3. Step 3: Cross multiply
    38,658.24x = 57,987.90 × 10,956.24
  4. Step 4: Simplify right side
    38,658.24x = 635,329,349.50
  5. Step 5: Solve for x
    x = 635,329,349.50/38,658.24
  6. Step 6: Final answer
    x = 16,434.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.