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Finding the Fourth Proportional to 17,605.28, 26,411.88 and 5,918.18

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Solution

The fourth proportional to 17,605.28, 26,411.88 and 5,918.18 is: 8,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.28 : 26,411.88 = 5,918.18 : x
  2. Step 2: Convert to fraction form
    17,605.28/26,411.88 = 5,918.18/x
  3. Step 3: Cross multiply
    17,605.28x = 26,411.88 × 5,918.18
  4. Step 4: Simplify right side
    17,605.28x = 156,310,259.98
  5. Step 5: Solve for x
    x = 156,310,259.98/17,605.28
  6. Step 6: Final answer
    x = 8,878.60

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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.