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Finding the Fourth Proportional to 26,672.52, 40,039.69 and 15,587.16

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Solution

The fourth proportional to 26,672.52, 40,039.69 and 15,587.16 is: 23,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,672.52 : 40,039.69 = 15,587.16 : x
  2. Step 2: Convert to fraction form
    26,672.52/40,039.69 = 15,587.16/x
  3. Step 3: Cross multiply
    26,672.52x = 40,039.69 × 15,587.16
  4. Step 4: Simplify right side
    26,672.52x = 624,105,050.94
  5. Step 5: Solve for x
    x = 624,105,050.94/26,672.52
  6. Step 6: Final answer
    x = 23,398.81

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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.