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Finding the Fourth Proportional to 69,575.78, 96,008.01 and 39,357.38

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Solution

The fourth proportional to 69,575.78, 96,008.01 and 39,357.38 is: 54,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,575.78 : 96,008.01 = 39,357.38 : x
  2. Step 2: Convert to fraction form
    69,575.78/96,008.01 = 39,357.38/x
  3. Step 3: Cross multiply
    69,575.78x = 96,008.01 × 39,357.38
  4. Step 4: Simplify right side
    69,575.78x = 3,778,623,732.61
  5. Step 5: Solve for x
    x = 3,778,623,732.61/69,575.78
  6. Step 6: Final answer
    x = 54,309.47

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1.5x scale

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.