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Finding the Fourth Proportional to 55,643.92, 83,428.82 and 28,924.25

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Solution

The fourth proportional to 55,643.92, 83,428.82 and 28,924.25 is: 43,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,643.92 : 83,428.82 = 28,924.25 : x
  2. Step 2: Convert to fraction form
    55,643.92/83,428.82 = 28,924.25/x
  3. Step 3: Cross multiply
    55,643.92x = 83,428.82 × 28,924.25
  4. Step 4: Simplify right side
    55,643.92x = 2,413,115,593.59
  5. Step 5: Solve for x
    x = 2,413,115,593.59/55,643.92
  6. Step 6: Final answer
    x = 43,367.10

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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.