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Finding the Fourth Proportional to 69,109.98, 95,370.70 and 38,482.86

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Solution

The fourth proportional to 69,109.98, 95,370.70 and 38,482.86 is: 53,105.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,109.98 : 95,370.70 = 38,482.86 : x
  2. Step 2: Convert to fraction form
    69,109.98/95,370.70 = 38,482.86/x
  3. Step 3: Cross multiply
    69,109.98x = 95,370.70 × 38,482.86
  4. Step 4: Simplify right side
    69,109.98x = 3,670,137,296.20
  5. Step 5: Solve for x
    x = 3,670,137,296.20/69,109.98
  6. Step 6: Final answer
    x = 53,105.75

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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.