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Finding the Fourth Proportional to 84,569.67, 126,850.15 and 28,410.24

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Solution

The fourth proportional to 84,569.67, 126,850.15 and 28,410.24 is: 42,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,569.67 : 126,850.15 = 28,410.24 : x
  2. Step 2: Convert to fraction form
    84,569.67/126,850.15 = 28,410.24/x
  3. Step 3: Cross multiply
    84,569.67x = 126,850.15 × 28,410.24
  4. Step 4: Simplify right side
    84,569.67x = 3,603,843,716.74
  5. Step 5: Solve for x
    x = 3,603,843,716.74/84,569.67
  6. Step 6: Final answer
    x = 42,613.90

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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.