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Finding the Fourth Proportional to 69,842.60, 96,379.80 and 38,011.44

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Solution

The fourth proportional to 69,842.60, 96,379.80 and 38,011.44 is: 52,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,842.60 : 96,379.80 = 38,011.44 : x
  2. Step 2: Convert to fraction form
    69,842.60/96,379.80 = 38,011.44/x
  3. Step 3: Cross multiply
    69,842.60x = 96,379.80 × 38,011.44
  4. Step 4: Simplify right side
    69,842.60x = 3,663,534,984.91
  5. Step 5: Solve for x
    x = 3,663,534,984.91/69,842.60
  6. Step 6: Final answer
    x = 52,454.16

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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.