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Finding the Fourth Proportional to 65,522.88, 90,429.10 and 36,454.14

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Solution

The fourth proportional to 65,522.88, 90,429.10 and 36,454.14 is: 50,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,522.88 : 90,429.10 = 36,454.14 : x
  2. Step 2: Convert to fraction form
    65,522.88/90,429.10 = 36,454.14/x
  3. Step 3: Cross multiply
    65,522.88x = 90,429.10 × 36,454.14
  4. Step 4: Simplify right side
    65,522.88x = 3,296,515,071.47
  5. Step 5: Solve for x
    x = 3,296,515,071.47/65,522.88
  6. Step 6: Final answer
    x = 50,310.90

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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.