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Finding the Fourth Proportional to 47,115.16, 65,016.17 and 25,894.44

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Solution

The fourth proportional to 47,115.16, 65,016.17 and 25,894.44 is: 35,732.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,115.16 : 65,016.17 = 25,894.44 : x
  2. Step 2: Convert to fraction form
    47,115.16/65,016.17 = 25,894.44/x
  3. Step 3: Cross multiply
    47,115.16x = 65,016.17 × 25,894.44
  4. Step 4: Simplify right side
    47,115.16x = 1,683,557,280.73
  5. Step 5: Solve for x
    x = 1,683,557,280.73/47,115.16
  6. Step 6: Final answer
    x = 35,732.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.