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Finding the Fourth Proportional to 64,251.35, 96,381.90 and 19,882.59

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Solution

The fourth proportional to 64,251.35, 96,381.90 and 19,882.59 is: 29,825.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,251.35 : 96,381.90 = 19,882.59 : x
  2. Step 2: Convert to fraction form
    64,251.35/96,381.90 = 19,882.59/x
  3. Step 3: Cross multiply
    64,251.35x = 96,381.90 × 19,882.59
  4. Step 4: Simplify right side
    64,251.35x = 1,916,321,801.12
  5. Step 5: Solve for x
    x = 1,916,321,801.12/64,251.35
  6. Step 6: Final answer
    x = 29,825.39

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1.5x scale

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.