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Finding the Fourth Proportional to 67,866.27, 93,655.53 and 39,577.42

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Solution

The fourth proportional to 67,866.27, 93,655.53 and 39,577.42 is: 54,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,866.27 : 93,655.53 = 39,577.42 : x
  2. Step 2: Convert to fraction form
    67,866.27/93,655.53 = 39,577.42/x
  3. Step 3: Cross multiply
    67,866.27x = 93,655.53 × 39,577.42
  4. Step 4: Simplify right side
    67,866.27x = 3,706,644,048.25
  5. Step 5: Solve for x
    x = 3,706,644,048.25/67,866.27
  6. Step 6: Final answer
    x = 54,616.89

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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.