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Finding the Fourth Proportional to 67,159.53, 92,669.87 and 38,859.75

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Solution

The fourth proportional to 67,159.53, 92,669.87 and 38,859.75 is: 53,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,159.53 : 92,669.87 = 38,859.75 : x
  2. Step 2: Convert to fraction form
    67,159.53/92,669.87 = 38,859.75/x
  3. Step 3: Cross multiply
    67,159.53x = 92,669.87 × 38,859.75
  4. Step 4: Simplify right side
    67,159.53x = 3,601,128,077.88
  5. Step 5: Solve for x
    x = 3,601,128,077.88/67,159.53
  6. Step 6: Final answer
    x = 53,620.51

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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.