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Finding the Fourth Proportional to 65,522.79, 90,418.77 and 36,841.64

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Solution

The fourth proportional to 65,522.79, 90,418.77 and 36,841.64 is: 50,839.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,522.79 : 90,418.77 = 36,841.64 : x
  2. Step 2: Convert to fraction form
    65,522.79/90,418.77 = 36,841.64/x
  3. Step 3: Cross multiply
    65,522.79x = 90,418.77 × 36,841.64
  4. Step 4: Simplify right side
    65,522.79x = 3,331,175,321.49
  5. Step 5: Solve for x
    x = 3,331,175,321.49/65,522.79
  6. Step 6: Final answer
    x = 50,839.95

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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.