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Finding the Fourth Proportional to 54,767.80, 82,151.70 and 36,105.40

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Solution

The fourth proportional to 54,767.80, 82,151.70 and 36,105.40 is: 54,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,767.80 : 82,151.70 = 36,105.40 : x
  2. Step 2: Convert to fraction form
    54,767.80/82,151.70 = 36,105.40/x
  3. Step 3: Cross multiply
    54,767.80x = 82,151.70 × 36,105.40
  4. Step 4: Simplify right side
    54,767.80x = 2,966,119,989.18
  5. Step 5: Solve for x
    x = 2,966,119,989.18/54,767.80
  6. Step 6: Final answer
    x = 54,158.10

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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.