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Finding the Fourth Proportional to 15,671.11, 23,512.82 and 6,899.87

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Solution

The fourth proportional to 15,671.11, 23,512.82 and 6,899.87 is: 10,352.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.11 : 23,512.82 = 6,899.87 : x
  2. Step 2: Convert to fraction form
    15,671.11/23,512.82 = 6,899.87/x
  3. Step 3: Cross multiply
    15,671.11x = 23,512.82 × 6,899.87
  4. Step 4: Simplify right side
    15,671.11x = 162,235,421.66
  5. Step 5: Solve for x
    x = 162,235,421.66/15,671.11
  6. Step 6: Final answer
    x = 10,352.52

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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.