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Finding the Fourth Proportional to 17,565.40, 26,348.10 and 8,817.40

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Solution

The fourth proportional to 17,565.40, 26,348.10 and 8,817.40 is: 13,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,565.40 : 26,348.10 = 8,817.40 : x
  2. Step 2: Convert to fraction form
    17,565.40/26,348.10 = 8,817.40/x
  3. Step 3: Cross multiply
    17,565.40x = 26,348.10 × 8,817.40
  4. Step 4: Simplify right side
    17,565.40x = 232,321,736.94
  5. Step 5: Solve for x
    x = 232,321,736.94/17,565.40
  6. Step 6: Final answer
    x = 13,226.10

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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.