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Finding the Fourth Proportional to 15,241.30, 22,829.55 and 12,649.30

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Solution

The fourth proportional to 15,241.30, 22,829.55 and 12,649.30 is: 18,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,241.30 : 22,829.55 = 12,649.30 : x
  2. Step 2: Convert to fraction form
    15,241.30/22,829.55 = 12,649.30/x
  3. Step 3: Cross multiply
    15,241.30x = 22,829.55 × 12,649.30
  4. Step 4: Simplify right side
    15,241.30x = 288,777,826.82
  5. Step 5: Solve for x
    x = 288,777,826.82/15,241.30
  6. Step 6: Final answer
    x = 18,947.06

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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.