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Finding the Fourth Proportional to 17,826.80, 26,740.20 and 14,910.80

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Solution

The fourth proportional to 17,826.80, 26,740.20 and 14,910.80 is: 22,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,826.80 : 26,740.20 = 14,910.80 : x
  2. Step 2: Convert to fraction form
    17,826.80/26,740.20 = 14,910.80/x
  3. Step 3: Cross multiply
    17,826.80x = 26,740.20 × 14,910.80
  4. Step 4: Simplify right side
    17,826.80x = 398,717,774.16
  5. Step 5: Solve for x
    x = 398,717,774.16/17,826.80
  6. Step 6: Final answer
    x = 22,366.20

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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.