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Finding the Fourth Proportional to 8,900.75, 13,353.15 and 3,057.01

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Solution

The fourth proportional to 8,900.75, 13,353.15 and 3,057.01 is: 4,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.75 : 13,353.15 = 3,057.01 : x
  2. Step 2: Convert to fraction form
    8,900.75/13,353.15 = 3,057.01/x
  3. Step 3: Cross multiply
    8,900.75x = 13,353.15 × 3,057.01
  4. Step 4: Simplify right side
    8,900.75x = 40,820,691.16
  5. Step 5: Solve for x
    x = 40,820,691.16/8,900.75
  6. Step 6: Final answer
    x = 4,586.21

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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.