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Finding the Fourth Proportional to 3,508.66, 5,262.95 and 1,009.91

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Solution

The fourth proportional to 3,508.66, 5,262.95 and 1,009.91 is: 1,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.66 : 5,262.95 = 1,009.91 : x
  2. Step 2: Convert to fraction form
    3,508.66/5,262.95 = 1,009.91/x
  3. Step 3: Cross multiply
    3,508.66x = 5,262.95 × 1,009.91
  4. Step 4: Simplify right side
    3,508.66x = 5,315,103.31
  5. Step 5: Solve for x
    x = 5,315,103.31/3,508.66
  6. Step 6: Final answer
    x = 1,514.85

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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.