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Finding the Fourth Proportional to 69,012.70, 95,235.32 and 38,799.30

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Solution

The fourth proportional to 69,012.70, 95,235.32 and 38,799.30 is: 53,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,012.70 : 95,235.32 = 38,799.30 : x
  2. Step 2: Convert to fraction form
    69,012.70/95,235.32 = 38,799.30/x
  3. Step 3: Cross multiply
    69,012.70x = 95,235.32 × 38,799.30
  4. Step 4: Simplify right side
    69,012.70x = 3,695,063,751.28
  5. Step 5: Solve for x
    x = 3,695,063,751.28/69,012.70
  6. Step 6: Final answer
    x = 53,541.79

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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.