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Finding the Fourth Proportional to 63,998.88, 88,342.54 and 55,010.30

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Solution

The fourth proportional to 63,998.88, 88,342.54 and 55,010.30 is: 75,934.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,998.88 : 88,342.54 = 55,010.30 : x
  2. Step 2: Convert to fraction form
    63,998.88/88,342.54 = 55,010.30/x
  3. Step 3: Cross multiply
    63,998.88x = 88,342.54 × 55,010.30
  4. Step 4: Simplify right side
    63,998.88x = 4,859,749,628.16
  5. Step 5: Solve for x
    x = 4,859,749,628.16/63,998.88
  6. Step 6: Final answer
    x = 75,934.92

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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.