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Finding the Fourth Proportional to 26,374.65, 36,390.90 and 15,614.12

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Solution

The fourth proportional to 26,374.65, 36,390.90 and 15,614.12 is: 21,543.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,374.65 : 36,390.90 = 15,614.12 : x
  2. Step 2: Convert to fraction form
    26,374.65/36,390.90 = 15,614.12/x
  3. Step 3: Cross multiply
    26,374.65x = 36,390.90 × 15,614.12
  4. Step 4: Simplify right side
    26,374.65x = 568,211,697.55
  5. Step 5: Solve for x
    x = 568,211,697.55/26,374.65
  6. Step 6: Final answer
    x = 21,543.86

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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.