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Finding the Fourth Proportional to 17,920.74, 26,877.08 and 11,724.24

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Solution

The fourth proportional to 17,920.74, 26,877.08 and 11,724.24 is: 17,583.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.74 : 26,877.08 = 11,724.24 : x
  2. Step 2: Convert to fraction form
    17,920.74/26,877.08 = 11,724.24/x
  3. Step 3: Cross multiply
    17,920.74x = 26,877.08 × 11,724.24
  4. Step 4: Simplify right side
    17,920.74x = 315,113,336.42
  5. Step 5: Solve for x
    x = 315,113,336.42/17,920.74
  6. Step 6: Final answer
    x = 17,583.72

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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.