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Finding the Fourth Proportional to 68,848.88, 95,010.54 and 38,634.80

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Solution

The fourth proportional to 68,848.88, 95,010.54 and 38,634.80 is: 53,315.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,848.88 : 95,010.54 = 38,634.80 : x
  2. Step 2: Convert to fraction form
    68,848.88/95,010.54 = 38,634.80/x
  3. Step 3: Cross multiply
    68,848.88x = 95,010.54 × 38,634.80
  4. Step 4: Simplify right side
    68,848.88x = 3,670,712,735.74
  5. Step 5: Solve for x
    x = 3,670,712,735.74/68,848.88
  6. Step 6: Final answer
    x = 53,315.51

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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.