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Finding the Fourth Proportional to 15,636.48, 23,438.28 and 5,769.48

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Solution

The fourth proportional to 15,636.48, 23,438.28 and 5,769.48 is: 8,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.48 : 23,438.28 = 5,769.48 : x
  2. Step 2: Convert to fraction form
    15,636.48/23,438.28 = 5,769.48/x
  3. Step 3: Cross multiply
    15,636.48x = 23,438.28 × 5,769.48
  4. Step 4: Simplify right side
    15,636.48x = 135,226,687.69
  5. Step 5: Solve for x
    x = 135,226,687.69/15,636.48
  6. Step 6: Final answer
    x = 8,648.15

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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.