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Finding the Fourth Proportional to 15,375.68, 23,070.39 and 7,473.86

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Solution

The fourth proportional to 15,375.68, 23,070.39 and 7,473.86 is: 11,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.68 : 23,070.39 = 7,473.86 : x
  2. Step 2: Convert to fraction form
    15,375.68/23,070.39 = 7,473.86/x
  3. Step 3: Cross multiply
    15,375.68x = 23,070.39 × 7,473.86
  4. Step 4: Simplify right side
    15,375.68x = 172,424,865.01
  5. Step 5: Solve for x
    x = 172,424,865.01/15,375.68
  6. Step 6: Final answer
    x = 11,214.13

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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.