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Finding the Fourth Proportional to 39,909.60, 59,835.60 and 22,384.80

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Solution

The fourth proportional to 39,909.60, 59,835.60 and 22,384.80 is: 33,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.60 : 59,835.60 = 22,384.80 : x
  2. Step 2: Convert to fraction form
    39,909.60/59,835.60 = 22,384.80/x
  3. Step 3: Cross multiply
    39,909.60x = 59,835.60 × 22,384.80
  4. Step 4: Simplify right side
    39,909.60x = 1,339,407,938.88
  5. Step 5: Solve for x
    x = 1,339,407,938.88/39,909.60
  6. Step 6: Final answer
    x = 33,561.05

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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.