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Finding the Fourth Proportional to 22,122.60, 31,049.40 and 22,122.60

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Solution

The fourth proportional to 22,122.60, 31,049.40 and 22,122.60 is: 31,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.60 : 31,049.40 = 22,122.60 : x
  2. Step 2: Convert to fraction form
    22,122.60/31,049.40 = 22,122.60/x
  3. Step 3: Cross multiply
    22,122.60x = 31,049.40 × 22,122.60
  4. Step 4: Simplify right side
    22,122.60x = 686,893,456.44
  5. Step 5: Solve for x
    x = 686,893,456.44/22,122.60
  6. Step 6: Final answer
    x = 31,049.40

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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.