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Finding the Fourth Proportional to 15,655.52, 23,481.12 and 8,648.48

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Solution

The fourth proportional to 15,655.52, 23,481.12 and 8,648.48 is: 12,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.52 : 23,481.12 = 8,648.48 : x
  2. Step 2: Convert to fraction form
    15,655.52/23,481.12 = 8,648.48/x
  3. Step 3: Cross multiply
    15,655.52x = 23,481.12 × 8,648.48
  4. Step 4: Simplify right side
    15,655.52x = 203,075,996.70
  5. Step 5: Solve for x
    x = 203,075,996.70/15,655.52
  6. Step 6: Final answer
    x = 12,971.53

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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.