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Finding the Fourth Proportional to 26,599.45, 39,903.90 and 8,831.17

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Solution

The fourth proportional to 26,599.45, 39,903.90 and 8,831.17 is: 13,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,599.45 : 39,903.90 = 8,831.17 : x
  2. Step 2: Convert to fraction form
    26,599.45/39,903.90 = 8,831.17/x
  3. Step 3: Cross multiply
    26,599.45x = 39,903.90 × 8,831.17
  4. Step 4: Simplify right side
    26,599.45x = 352,398,124.56
  5. Step 5: Solve for x
    x = 352,398,124.56/26,599.45
  6. Step 6: Final answer
    x = 13,248.32

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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.