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Finding the Fourth Proportional to 40,757.60, 61,133.88 and 14,458.88

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Solution

The fourth proportional to 40,757.60, 61,133.88 and 14,458.88 is: 21,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,757.60 : 61,133.88 = 14,458.88 : x
  2. Step 2: Convert to fraction form
    40,757.60/61,133.88 = 14,458.88/x
  3. Step 3: Cross multiply
    40,757.60x = 61,133.88 × 14,458.88
  4. Step 4: Simplify right side
    40,757.60x = 883,927,434.85
  5. Step 5: Solve for x
    x = 883,927,434.85/40,757.60
  6. Step 6: Final answer
    x = 21,687.43

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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.