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Finding the Fourth Proportional to 52,101.68, 71,900.22 and 28,229

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Solution

The fourth proportional to 52,101.68, 71,900.22 and 28,229 is: 38,955.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,101.68 : 71,900.22 = 28,229 : x
  2. Step 2: Convert to fraction form
    52,101.68/71,900.22 = 28,229/x
  3. Step 3: Cross multiply
    52,101.68x = 71,900.22 × 28,229
  4. Step 4: Simplify right side
    52,101.68x = 2,029,671,310.38
  5. Step 5: Solve for x
    x = 2,029,671,310.38/52,101.68
  6. Step 6: Final answer
    x = 38,955.97

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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.