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Finding the Fourth Proportional to 54,002.80, 80,979.90 and 24,405.40

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Solution

The fourth proportional to 54,002.80, 80,979.90 and 24,405.40 is: 36,597.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,002.80 : 80,979.90 = 24,405.40 : x
  2. Step 2: Convert to fraction form
    54,002.80/80,979.90 = 24,405.40/x
  3. Step 3: Cross multiply
    54,002.80x = 80,979.90 × 24,405.40
  4. Step 4: Simplify right side
    54,002.80x = 1,976,346,851.46
  5. Step 5: Solve for x
    x = 1,976,346,851.46/54,002.80
  6. Step 6: Final answer
    x = 36,597.12

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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.