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Finding the Fourth Proportional to 69,364.89, 95,718.11 and 39,157.56

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Solution

The fourth proportional to 69,364.89, 95,718.11 and 39,157.56 is: 54,034.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,364.89 : 95,718.11 = 39,157.56 : x
  2. Step 2: Convert to fraction form
    69,364.89/95,718.11 = 39,157.56/x
  3. Step 3: Cross multiply
    69,364.89x = 95,718.11 × 39,157.56
  4. Step 4: Simplify right side
    69,364.89x = 3,748,087,439.62
  5. Step 5: Solve for x
    x = 3,748,087,439.62/69,364.89
  6. Step 6: Final answer
    x = 54,034.36

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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.