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Finding the Fourth Proportional to 15,862.35, 23,804.29 and 8,472.11

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Solution

The fourth proportional to 15,862.35, 23,804.29 and 8,472.11 is: 12,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862.35 : 23,804.29 = 8,472.11 : x
  2. Step 2: Convert to fraction form
    15,862.35/23,804.29 = 8,472.11/x
  3. Step 3: Cross multiply
    15,862.35x = 23,804.29 × 8,472.11
  4. Step 4: Simplify right side
    15,862.35x = 201,672,520.99
  5. Step 5: Solve for x
    x = 201,672,520.99/15,862.35
  6. Step 6: Final answer
    x = 12,713.92

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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.