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Finding the Fourth Proportional to 67,082.10, 100,623.15 and 41,712.90

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Solution

The fourth proportional to 67,082.10, 100,623.15 and 41,712.90 is: 62,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,082.10 : 100,623.15 = 41,712.90 : x
  2. Step 2: Convert to fraction form
    67,082.10/100,623.15 = 41,712.90/x
  3. Step 3: Cross multiply
    67,082.10x = 100,623.15 × 41,712.90
  4. Step 4: Simplify right side
    67,082.10x = 4,197,283,393.64
  5. Step 5: Solve for x
    x = 4,197,283,393.64/67,082.10
  6. Step 6: Final answer
    x = 62,569.35

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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.