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Finding the Fourth Proportional to 69,393.45, 95,763.43 and 38,766.53

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Solution

The fourth proportional to 69,393.45, 95,763.43 and 38,766.53 is: 53,498.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,393.45 : 95,763.43 = 38,766.53 : x
  2. Step 2: Convert to fraction form
    69,393.45/95,763.43 = 38,766.53/x
  3. Step 3: Cross multiply
    69,393.45x = 95,763.43 × 38,766.53
  4. Step 4: Simplify right side
    69,393.45x = 3,712,415,688.17
  5. Step 5: Solve for x
    x = 3,712,415,688.17/69,393.45
  6. Step 6: Final answer
    x = 53,498.07

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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.