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Finding the Fourth Proportional to 26,952.96, 40,403.52 and 8,472

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Solution

The fourth proportional to 26,952.96, 40,403.52 and 8,472 is: 12,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,952.96 : 40,403.52 = 8,472 : x
  2. Step 2: Convert to fraction form
    26,952.96/40,403.52 = 8,472/x
  3. Step 3: Cross multiply
    26,952.96x = 40,403.52 × 8,472
  4. Step 4: Simplify right side
    26,952.96x = 342,298,621.44
  5. Step 5: Solve for x
    x = 342,298,621.44/26,952.96
  6. Step 6: Final answer
    x = 12,699.85

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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.