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Finding the Fourth Proportional to 17,710.65, 26,565.84 and 6,620.13

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Solution

The fourth proportional to 17,710.65, 26,565.84 and 6,620.13 is: 9,930.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,710.65 : 26,565.84 = 6,620.13 : x
  2. Step 2: Convert to fraction form
    17,710.65/26,565.84 = 6,620.13/x
  3. Step 3: Cross multiply
    17,710.65x = 26,565.84 × 6,620.13
  4. Step 4: Simplify right side
    17,710.65x = 175,869,314.36
  5. Step 5: Solve for x
    x = 175,869,314.36/17,710.65
  6. Step 6: Final answer
    x = 9,930.14

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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.