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Finding the Fourth Proportional to 69,202.81, 95,501.87 and 38,988.46

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Solution

The fourth proportional to 69,202.81, 95,501.87 and 38,988.46 is: 53,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,202.81 : 95,501.87 = 38,988.46 : x
  2. Step 2: Convert to fraction form
    69,202.81/95,501.87 = 38,988.46/x
  3. Step 3: Cross multiply
    69,202.81x = 95,501.87 × 38,988.46
  4. Step 4: Simplify right side
    69,202.81x = 3,723,470,838.42
  5. Step 5: Solve for x
    x = 3,723,470,838.42/69,202.81
  6. Step 6: Final answer
    x = 53,805.20

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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.