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Finding the Fourth Proportional to 54,031.60, 80,998.80 and 35,320.60

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Solution

The fourth proportional to 54,031.60, 80,998.80 and 35,320.60 is: 52,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,031.60 : 80,998.80 = 35,320.60 : x
  2. Step 2: Convert to fraction form
    54,031.60/80,998.80 = 35,320.60/x
  3. Step 3: Cross multiply
    54,031.60x = 80,998.80 × 35,320.60
  4. Step 4: Simplify right side
    54,031.60x = 2,860,926,215.28
  5. Step 5: Solve for x
    x = 2,860,926,215.28/54,031.60
  6. Step 6: Final answer
    x = 52,949.13

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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.