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Finding the Fourth Proportional to 10,324, 15,487.92 and 4,852

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Solution

The fourth proportional to 10,324, 15,487.92 and 4,852 is: 7,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,324 : 15,487.92 = 4,852 : x
  2. Step 2: Convert to fraction form
    10,324/15,487.92 = 4,852/x
  3. Step 3: Cross multiply
    10,324x = 15,487.92 × 4,852
  4. Step 4: Simplify right side
    10,324x = 75,147,387.84
  5. Step 5: Solve for x
    x = 75,147,387.84/10,324
  6. Step 6: Final answer
    x = 7,278.90

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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.