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Finding the Fourth Proportional to 8,980.34, 13,472.01 and 4,049.87

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Solution

The fourth proportional to 8,980.34, 13,472.01 and 4,049.87 is: 6,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.34 : 13,472.01 = 4,049.87 : x
  2. Step 2: Convert to fraction form
    8,980.34/13,472.01 = 4,049.87/x
  3. Step 3: Cross multiply
    8,980.34x = 13,472.01 × 4,049.87
  4. Step 4: Simplify right side
    8,980.34x = 54,559,821.78
  5. Step 5: Solve for x
    x = 54,559,821.78/8,980.34
  6. Step 6: Final answer
    x = 6,075.48

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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.