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Finding the Fourth Proportional to 38,660.10, 54,007.50 and 38,660.10

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Solution

The fourth proportional to 38,660.10, 54,007.50 and 38,660.10 is: 54,007.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.10 : 54,007.50 = 38,660.10 : x
  2. Step 2: Convert to fraction form
    38,660.10/54,007.50 = 38,660.10/x
  3. Step 3: Cross multiply
    38,660.10x = 54,007.50 × 38,660.10
  4. Step 4: Simplify right side
    38,660.10x = 2,087,935,350.75
  5. Step 5: Solve for x
    x = 2,087,935,350.75/38,660.10
  6. Step 6: Final answer
    x = 54,007.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.