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Finding the Fourth Proportional to 68,828.55, 94,882.86 and 48,649.83

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Solution

The fourth proportional to 68,828.55, 94,882.86 and 48,649.83 is: 67,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,828.55 : 94,882.86 = 48,649.83 : x
  2. Step 2: Convert to fraction form
    68,828.55/94,882.86 = 48,649.83/x
  3. Step 3: Cross multiply
    68,828.55x = 94,882.86 × 48,649.83
  4. Step 4: Simplify right side
    68,828.55x = 4,616,035,008.91
  5. Step 5: Solve for x
    x = 4,616,035,008.91/68,828.55
  6. Step 6: Final answer
    x = 67,065.70

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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.