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Finding the Fourth Proportional to 67,388.55, 101,082.21 and 25,835.55

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Solution

The fourth proportional to 67,388.55, 101,082.21 and 25,835.55 is: 38,753.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,388.55 : 101,082.21 = 25,835.55 : x
  2. Step 2: Convert to fraction form
    67,388.55/101,082.21 = 25,835.55/x
  3. Step 3: Cross multiply
    67,388.55x = 101,082.21 × 25,835.55
  4. Step 4: Simplify right side
    67,388.55x = 2,611,513,985.15
  5. Step 5: Solve for x
    x = 2,611,513,985.15/67,388.55
  6. Step 6: Final answer
    x = 38,753.08

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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.