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Finding the Fourth Proportional to 18,986.74, 26,197.22 and 11,024.24

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Solution

The fourth proportional to 18,986.74, 26,197.22 and 11,024.24 is: 15,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.74 : 26,197.22 = 11,024.24 : x
  2. Step 2: Convert to fraction form
    18,986.74/26,197.22 = 11,024.24/x
  3. Step 3: Cross multiply
    18,986.74x = 26,197.22 × 11,024.24
  4. Step 4: Simplify right side
    18,986.74x = 288,804,337.19
  5. Step 5: Solve for x
    x = 288,804,337.19/18,986.74
  6. Step 6: Final answer
    x = 15,210.85

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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.