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Finding the Fourth Proportional to 69,102.88, 95,360.82 and 38,888.20

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Solution

The fourth proportional to 69,102.88, 95,360.82 and 38,888.20 is: 53,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,102.88 : 95,360.82 = 38,888.20 : x
  2. Step 2: Convert to fraction form
    69,102.88/95,360.82 = 38,888.20/x
  3. Step 3: Cross multiply
    69,102.88x = 95,360.82 × 38,888.20
  4. Step 4: Simplify right side
    69,102.88x = 3,708,410,640.32
  5. Step 5: Solve for x
    x = 3,708,410,640.32/69,102.88
  6. Step 6: Final answer
    x = 53,665.07

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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.