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Finding the Fourth Proportional to 28,151.70, 38,642.39 and 24,893.60

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Solution

The fourth proportional to 28,151.70, 38,642.39 and 24,893.60 is: 34,170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151.70 : 38,642.39 = 24,893.60 : x
  2. Step 2: Convert to fraction form
    28,151.70/38,642.39 = 24,893.60/x
  3. Step 3: Cross multiply
    28,151.70x = 38,642.39 × 24,893.60
  4. Step 4: Simplify right side
    28,151.70x = 961,948,371.43
  5. Step 5: Solve for x
    x = 961,948,371.43/28,151.70
  6. Step 6: Final answer
    x = 34,170.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.