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Finding the Fourth Proportional to 17,914.32, 26,830.58 and 8,560.96

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Solution

The fourth proportional to 17,914.32, 26,830.58 and 8,560.96 is: 12,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,914.32 : 26,830.58 = 8,560.96 : x
  2. Step 2: Convert to fraction form
    17,914.32/26,830.58 = 8,560.96/x
  3. Step 3: Cross multiply
    17,914.32x = 26,830.58 × 8,560.96
  4. Step 4: Simplify right side
    17,914.32x = 229,695,522.16
  5. Step 5: Solve for x
    x = 229,695,522.16/17,914.32
  6. Step 6: Final answer
    x = 12,821.89

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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.