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Finding the Fourth Proportional to 22,687.60, 34,031.40 and 16,434.40

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Solution

The fourth proportional to 22,687.60, 34,031.40 and 16,434.40 is: 24,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.60 : 34,031.40 = 16,434.40 : x
  2. Step 2: Convert to fraction form
    22,687.60/34,031.40 = 16,434.40/x
  3. Step 3: Cross multiply
    22,687.60x = 34,031.40 × 16,434.40
  4. Step 4: Simplify right side
    22,687.60x = 559,285,640.16
  5. Step 5: Solve for x
    x = 559,285,640.16/22,687.60
  6. Step 6: Final answer
    x = 24,651.60

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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.