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Finding the Fourth Proportional to 50,695.61, 69,965.19 and 29,186.12

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Solution

The fourth proportional to 50,695.61, 69,965.19 and 29,186.12 is: 40,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,695.61 : 69,965.19 = 29,186.12 : x
  2. Step 2: Convert to fraction form
    50,695.61/69,965.19 = 29,186.12/x
  3. Step 3: Cross multiply
    50,695.61x = 69,965.19 × 29,186.12
  4. Step 4: Simplify right side
    50,695.61x = 2,042,012,606.08
  5. Step 5: Solve for x
    x = 2,042,012,606.08/50,695.61
  6. Step 6: Final answer
    x = 40,279.87

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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.