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Finding the Fourth Proportional to 51,343.61, 77,039.84 and 35,572.91

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Solution

The fourth proportional to 51,343.61, 77,039.84 and 35,572.91 is: 53,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,343.61 : 77,039.84 = 35,572.91 : x
  2. Step 2: Convert to fraction form
    51,343.61/77,039.84 = 35,572.91/x
  3. Step 3: Cross multiply
    51,343.61x = 77,039.84 × 35,572.91
  4. Step 4: Simplify right side
    51,343.61x = 2,740,530,998.47
  5. Step 5: Solve for x
    x = 2,740,530,998.47/51,343.61
  6. Step 6: Final answer
    x = 53,376.29

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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.