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Finding the Fourth Proportional to 54,740.80, 82,147.65 and 25,143.40

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Solution

The fourth proportional to 54,740.80, 82,147.65 and 25,143.40 is: 37,731.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,740.80 : 82,147.65 = 25,143.40 : x
  2. Step 2: Convert to fraction form
    54,740.80/82,147.65 = 25,143.40/x
  3. Step 3: Cross multiply
    54,740.80x = 82,147.65 × 25,143.40
  4. Step 4: Simplify right side
    54,740.80x = 2,065,471,223.01
  5. Step 5: Solve for x
    x = 2,065,471,223.01/54,740.80
  6. Step 6: Final answer
    x = 37,731.84

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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.