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Finding the Fourth Proportional to 15,803.68, 23,709.49 and 7,481.45

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Solution

The fourth proportional to 15,803.68, 23,709.49 and 7,481.45 is: 11,224.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,803.68 : 23,709.49 = 7,481.45 : x
  2. Step 2: Convert to fraction form
    15,803.68/23,709.49 = 7,481.45/x
  3. Step 3: Cross multiply
    15,803.68x = 23,709.49 × 7,481.45
  4. Step 4: Simplify right side
    15,803.68x = 177,381,363.96
  5. Step 5: Solve for x
    x = 177,381,363.96/15,803.68
  6. Step 6: Final answer
    x = 11,224.05

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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.