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Finding the Fourth Proportional to 17,718.80, 26,581.69 and 5,068.68

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Solution

The fourth proportional to 17,718.80, 26,581.69 and 5,068.68 is: 7,604.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718.80 : 26,581.69 = 5,068.68 : x
  2. Step 2: Convert to fraction form
    17,718.80/26,581.69 = 5,068.68/x
  3. Step 3: Cross multiply
    17,718.80x = 26,581.69 × 5,068.68
  4. Step 4: Simplify right side
    17,718.80x = 134,734,001.38
  5. Step 5: Solve for x
    x = 134,734,001.38/17,718.80
  6. Step 6: Final answer
    x = 7,604.01

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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.