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Finding the Fourth Proportional to 68,607.88, 94,683.30 and 38,395.96

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Solution

The fourth proportional to 68,607.88, 94,683.30 and 38,395.96 is: 52,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,607.88 : 94,683.30 = 38,395.96 : x
  2. Step 2: Convert to fraction form
    68,607.88/94,683.30 = 38,395.96/x
  3. Step 3: Cross multiply
    68,607.88x = 94,683.30 × 38,395.96
  4. Step 4: Simplify right side
    68,607.88x = 3,635,456,199.47
  5. Step 5: Solve for x
    x = 3,635,456,199.47/68,607.88
  6. Step 6: Final answer
    x = 52,988.90

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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.