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Finding the Fourth Proportional to 10,508.99, 15,763.08 and 2,611.52

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Solution

The fourth proportional to 10,508.99, 15,763.08 and 2,611.52 is: 3,917.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.99 : 15,763.08 = 2,611.52 : x
  2. Step 2: Convert to fraction form
    10,508.99/15,763.08 = 2,611.52/x
  3. Step 3: Cross multiply
    10,508.99x = 15,763.08 × 2,611.52
  4. Step 4: Simplify right side
    10,508.99x = 41,165,598.68
  5. Step 5: Solve for x
    x = 41,165,598.68/10,508.99
  6. Step 6: Final answer
    x = 3,917.18

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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.