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Finding the Fourth Proportional to 11,482.60, 17,225.10 and 3,689.56

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Solution

The fourth proportional to 11,482.60, 17,225.10 and 3,689.56 is: 5,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,482.60 : 17,225.10 = 3,689.56 : x
  2. Step 2: Convert to fraction form
    11,482.60/17,225.10 = 3,689.56/x
  3. Step 3: Cross multiply
    11,482.60x = 17,225.10 × 3,689.56
  4. Step 4: Simplify right side
    11,482.60x = 63,553,039.96
  5. Step 5: Solve for x
    x = 63,553,039.96/11,482.60
  6. Step 6: Final answer
    x = 5,534.73

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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.