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Finding the Fourth Proportional to 80,598.60, 120,854.70 and 33,798.60

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Solution

The fourth proportional to 80,598.60, 120,854.70 and 33,798.60 is: 50,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,598.60 : 120,854.70 = 33,798.60 : x
  2. Step 2: Convert to fraction form
    80,598.60/120,854.70 = 33,798.60/x
  3. Step 3: Cross multiply
    80,598.60x = 120,854.70 × 33,798.60
  4. Step 4: Simplify right side
    80,598.60x = 4,084,719,663.42
  5. Step 5: Solve for x
    x = 4,084,719,663.42/80,598.60
  6. Step 6: Final answer
    x = 50,679.78

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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.