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Finding the Fourth Proportional to 69,357.60, 95,713.10 and 39,152.74

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Solution

The fourth proportional to 69,357.60, 95,713.10 and 39,152.74 is: 54,030.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,357.60 : 95,713.10 = 39,152.74 : x
  2. Step 2: Convert to fraction form
    69,357.60/95,713.10 = 39,152.74/x
  3. Step 3: Cross multiply
    69,357.60x = 95,713.10 × 39,152.74
  4. Step 4: Simplify right side
    69,357.60x = 3,747,430,118.89
  5. Step 5: Solve for x
    x = 3,747,430,118.89/69,357.60
  6. Step 6: Final answer
    x = 54,030.56

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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.