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Finding the Fourth Proportional to 26,728.76, 40,083.42 and 9,193.88

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Solution

The fourth proportional to 26,728.76, 40,083.42 and 9,193.88 is: 13,787.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.76 : 40,083.42 = 9,193.88 : x
  2. Step 2: Convert to fraction form
    26,728.76/40,083.42 = 9,193.88/x
  3. Step 3: Cross multiply
    26,728.76x = 40,083.42 × 9,193.88
  4. Step 4: Simplify right side
    26,728.76x = 368,522,153.47
  5. Step 5: Solve for x
    x = 368,522,153.47/26,728.76
  6. Step 6: Final answer
    x = 13,787.48

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1.5x scale

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.