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Finding the Fourth Proportional to 5,875.29, 8,811.18 and 3,100.48

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Solution

The fourth proportional to 5,875.29, 8,811.18 and 3,100.48 is: 4,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,875.29 : 8,811.18 = 3,100.48 : x
  2. Step 2: Convert to fraction form
    5,875.29/8,811.18 = 3,100.48/x
  3. Step 3: Cross multiply
    5,875.29x = 8,811.18 × 3,100.48
  4. Step 4: Simplify right side
    5,875.29x = 27,318,865.34
  5. Step 5: Solve for x
    x = 27,318,865.34/5,875.29
  6. Step 6: Final answer
    x = 4,649.79

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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.