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Finding the Fourth Proportional to 26,687.90, 36,824.06 and 16,078.11

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Solution

The fourth proportional to 26,687.90, 36,824.06 and 16,078.11 is: 22,184.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,687.90 : 36,824.06 = 16,078.11 : x
  2. Step 2: Convert to fraction form
    26,687.90/36,824.06 = 16,078.11/x
  3. Step 3: Cross multiply
    26,687.90x = 36,824.06 × 16,078.11
  4. Step 4: Simplify right side
    26,687.90x = 592,061,206.94
  5. Step 5: Solve for x
    x = 592,061,206.94/26,687.90
  6. Step 6: Final answer
    x = 22,184.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.