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Finding the Fourth Proportional to 82,049.52, 123,076.88 and 25,890.16

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Solution

The fourth proportional to 82,049.52, 123,076.88 and 25,890.16 is: 38,836.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,049.52 : 123,076.88 = 25,890.16 : x
  2. Step 2: Convert to fraction form
    82,049.52/123,076.88 = 25,890.16/x
  3. Step 3: Cross multiply
    82,049.52x = 123,076.88 × 25,890.16
  4. Step 4: Simplify right side
    82,049.52x = 3,186,480,115.50
  5. Step 5: Solve for x
    x = 3,186,480,115.50/82,049.52
  6. Step 6: Final answer
    x = 38,836.06

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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.