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Finding the Fourth Proportional to 13,347.52, 20,029.92 and 7,515.52

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Solution

The fourth proportional to 13,347.52, 20,029.92 and 7,515.52 is: 11,278.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.52 : 20,029.92 = 7,515.52 : x
  2. Step 2: Convert to fraction form
    13,347.52/20,029.92 = 7,515.52/x
  3. Step 3: Cross multiply
    13,347.52x = 20,029.92 × 7,515.52
  4. Step 4: Simplify right side
    13,347.52x = 150,535,264.36
  5. Step 5: Solve for x
    x = 150,535,264.36/13,347.52
  6. Step 6: Final answer
    x = 11,278.14

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1.5x scale

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.