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Finding the Fourth Proportional to 39,591.52, 59,385.84 and 11,888.80

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Solution

The fourth proportional to 39,591.52, 59,385.84 and 11,888.80 is: 17,832.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,591.52 : 59,385.84 = 11,888.80 : x
  2. Step 2: Convert to fraction form
    39,591.52/59,385.84 = 11,888.80/x
  3. Step 3: Cross multiply
    39,591.52x = 59,385.84 × 11,888.80
  4. Step 4: Simplify right side
    39,591.52x = 706,026,374.59
  5. Step 5: Solve for x
    x = 706,026,374.59/39,591.52
  6. Step 6: Final answer
    x = 17,832.77

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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.