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Finding the Fourth Proportional to 52,105.95, 71,905.91 and 29,452.28

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Solution

The fourth proportional to 52,105.95, 71,905.91 and 29,452.28 is: 40,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,105.95 : 71,905.91 = 29,452.28 : x
  2. Step 2: Convert to fraction form
    52,105.95/71,905.91 = 29,452.28/x
  3. Step 3: Cross multiply
    52,105.95x = 71,905.91 × 29,452.28
  4. Step 4: Simplify right side
    52,105.95x = 2,117,792,488.18
  5. Step 5: Solve for x
    x = 2,117,792,488.18/52,105.95
  6. Step 6: Final answer
    x = 40,643.97

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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.