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Finding the Fourth Proportional to 69,699.35, 96,179.13 and 38,655.60

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Solution

The fourth proportional to 69,699.35, 96,179.13 and 38,655.60 is: 53,341.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,699.35 : 96,179.13 = 38,655.60 : x
  2. Step 2: Convert to fraction form
    69,699.35/96,179.13 = 38,655.60/x
  3. Step 3: Cross multiply
    69,699.35x = 96,179.13 × 38,655.60
  4. Step 4: Simplify right side
    69,699.35x = 3,717,861,496.73
  5. Step 5: Solve for x
    x = 3,717,861,496.73/69,699.35
  6. Step 6: Final answer
    x = 53,341.41

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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.