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Finding the Fourth Proportional to 26,927.29, 40,391.43 and 11,728.32

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Solution

The fourth proportional to 26,927.29, 40,391.43 and 11,728.32 is: 17,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,927.29 : 40,391.43 = 11,728.32 : x
  2. Step 2: Convert to fraction form
    26,927.29/40,391.43 = 11,728.32/x
  3. Step 3: Cross multiply
    26,927.29x = 40,391.43 × 11,728.32
  4. Step 4: Simplify right side
    26,927.29x = 473,723,616.30
  5. Step 5: Solve for x
    x = 473,723,616.30/26,927.29
  6. Step 6: Final answer
    x = 17,592.70

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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.