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Finding the Fourth Proportional to 61,666.92, 85,104.18 and 34,799.63

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Solution

The fourth proportional to 61,666.92, 85,104.18 and 34,799.63 is: 48,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,666.92 : 85,104.18 = 34,799.63 : x
  2. Step 2: Convert to fraction form
    61,666.92/85,104.18 = 34,799.63/x
  3. Step 3: Cross multiply
    61,666.92x = 85,104.18 × 34,799.63
  4. Step 4: Simplify right side
    61,666.92x = 2,961,593,975.45
  5. Step 5: Solve for x
    x = 2,961,593,975.45/61,666.92
  6. Step 6: Final answer
    x = 48,025.65

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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.