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Finding the Fourth Proportional to 61,809.96, 92,715.90 and 15,063.72

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Solution

The fourth proportional to 61,809.96, 92,715.90 and 15,063.72 is: 22,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.96 : 92,715.90 = 15,063.72 : x
  2. Step 2: Convert to fraction form
    61,809.96/92,715.90 = 15,063.72/x
  3. Step 3: Cross multiply
    61,809.96x = 92,715.90 × 15,063.72
  4. Step 4: Simplify right side
    61,809.96x = 1,396,646,357.15
  5. Step 5: Solve for x
    x = 1,396,646,357.15/61,809.96
  6. Step 6: Final answer
    x = 22,595.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.