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Finding the Fourth Proportional to 55,373.87, 83,057.89 and 15,929.44

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Solution

The fourth proportional to 55,373.87, 83,057.89 and 15,929.44 is: 23,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,373.87 : 83,057.89 = 15,929.44 : x
  2. Step 2: Convert to fraction form
    55,373.87/83,057.89 = 15,929.44/x
  3. Step 3: Cross multiply
    55,373.87x = 83,057.89 × 15,929.44
  4. Step 4: Simplify right side
    55,373.87x = 1,323,065,675.28
  5. Step 5: Solve for x
    x = 1,323,065,675.28/55,373.87
  6. Step 6: Final answer
    x = 23,893.32

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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.