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Finding the Fourth Proportional to 7,530.74, 11,287.15 and 5,675.74

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Solution

The fourth proportional to 7,530.74, 11,287.15 and 5,675.74 is: 8,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,530.74 : 11,287.15 = 5,675.74 : x
  2. Step 2: Convert to fraction form
    7,530.74/11,287.15 = 5,675.74/x
  3. Step 3: Cross multiply
    7,530.74x = 11,287.15 × 5,675.74
  4. Step 4: Simplify right side
    7,530.74x = 64,062,886.33
  5. Step 5: Solve for x
    x = 64,062,886.33/7,530.74
  6. Step 6: Final answer
    x = 8,506.85

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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.