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Finding the Fourth Proportional to 17,640.83, 26,459.91 and 8,282.90

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Solution

The fourth proportional to 17,640.83, 26,459.91 and 8,282.90 is: 12,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.83 : 26,459.91 = 8,282.90 : x
  2. Step 2: Convert to fraction form
    17,640.83/26,459.91 = 8,282.90/x
  3. Step 3: Cross multiply
    17,640.83x = 26,459.91 × 8,282.90
  4. Step 4: Simplify right side
    17,640.83x = 219,164,656.24
  5. Step 5: Solve for x
    x = 219,164,656.24/17,640.83
  6. Step 6: Final answer
    x = 12,423.72

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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.