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Finding the Fourth Proportional to 69,079.79, 95,326.20 and 38,866.39

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Solution

The fourth proportional to 69,079.79, 95,326.20 and 38,866.39 is: 53,633.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.79 : 95,326.20 = 38,866.39 : x
  2. Step 2: Convert to fraction form
    69,079.79/95,326.20 = 38,866.39/x
  3. Step 3: Cross multiply
    69,079.79x = 95,326.20 × 38,866.39
  4. Step 4: Simplify right side
    69,079.79x = 3,704,984,789.79
  5. Step 5: Solve for x
    x = 3,704,984,789.79/69,079.79
  6. Step 6: Final answer
    x = 53,633.41

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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.