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Finding the Fourth Proportional to 17,574.10, 26,354.19 and 7,579.61

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Solution

The fourth proportional to 17,574.10, 26,354.19 and 7,579.61 is: 11,366.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,574.10 : 26,354.19 = 7,579.61 : x
  2. Step 2: Convert to fraction form
    17,574.10/26,354.19 = 7,579.61/x
  3. Step 3: Cross multiply
    17,574.10x = 26,354.19 × 7,579.61
  4. Step 4: Simplify right side
    17,574.10x = 199,754,477.55
  5. Step 5: Solve for x
    x = 199,754,477.55/17,574.10
  6. Step 6: Final answer
    x = 11,366.41

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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.