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Finding the Fourth Proportional to 80,654.68, 120,986.79 and 24,496.66

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Solution

The fourth proportional to 80,654.68, 120,986.79 and 24,496.66 is: 36,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,654.68 : 120,986.79 = 24,496.66 : x
  2. Step 2: Convert to fraction form
    80,654.68/120,986.79 = 24,496.66/x
  3. Step 3: Cross multiply
    80,654.68x = 120,986.79 × 24,496.66
  4. Step 4: Simplify right side
    80,654.68x = 2,963,772,259.12
  5. Step 5: Solve for x
    x = 2,963,772,259.12/80,654.68
  6. Step 6: Final answer
    x = 36,746.44

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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.