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Finding the Fourth Proportional to 15,452.96, 21,324.70 and 9,400.96

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Solution

The fourth proportional to 15,452.96, 21,324.70 and 9,400.96 is: 12,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.96 : 21,324.70 = 9,400.96 : x
  2. Step 2: Convert to fraction form
    15,452.96/21,324.70 = 9,400.96/x
  3. Step 3: Cross multiply
    15,452.96x = 21,324.70 × 9,400.96
  4. Step 4: Simplify right side
    15,452.96x = 200,472,651.71
  5. Step 5: Solve for x
    x = 200,472,651.71/15,452.96
  6. Step 6: Final answer
    x = 12,973.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.