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Finding the Fourth Proportional to 10,347.80, 15,522.30 and 2,952.80

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Solution

The fourth proportional to 10,347.80, 15,522.30 and 2,952.80 is: 4,429.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.80 : 15,522.30 = 2,952.80 : x
  2. Step 2: Convert to fraction form
    10,347.80/15,522.30 = 2,952.80/x
  3. Step 3: Cross multiply
    10,347.80x = 15,522.30 × 2,952.80
  4. Step 4: Simplify right side
    10,347.80x = 45,834,247.44
  5. Step 5: Solve for x
    x = 45,834,247.44/10,347.80
  6. Step 6: Final answer
    x = 4,429.37

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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.