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Finding the Fourth Proportional to 69,100.47, 95,360.49 and 38,886.87

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Solution

The fourth proportional to 69,100.47, 95,360.49 and 38,886.87 is: 53,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,100.47 : 95,360.49 = 38,886.87 : x
  2. Step 2: Convert to fraction form
    69,100.47/95,360.49 = 38,886.87/x
  3. Step 3: Cross multiply
    69,100.47x = 95,360.49 × 38,886.87
  4. Step 4: Simplify right side
    69,100.47x = 3,708,270,977.77
  5. Step 5: Solve for x
    x = 3,708,270,977.77/69,100.47
  6. Step 6: Final answer
    x = 53,664.92

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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.