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Finding the Fourth Proportional to 68,867.76, 95,029.68 and 38,646.84

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Solution

The fourth proportional to 68,867.76, 95,029.68 and 38,646.84 is: 53,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,867.76 : 95,029.68 = 38,646.84 : x
  2. Step 2: Convert to fraction form
    68,867.76/95,029.68 = 38,646.84/x
  3. Step 3: Cross multiply
    68,867.76x = 95,029.68 × 38,646.84
  4. Step 4: Simplify right side
    68,867.76x = 3,672,596,838.21
  5. Step 5: Solve for x
    x = 3,672,596,838.21/68,867.76
  6. Step 6: Final answer
    x = 53,328.25

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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.