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Finding the Fourth Proportional to 18,590.96, 25,644.25 and 11,032.31

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Solution

The fourth proportional to 18,590.96, 25,644.25 and 11,032.31 is: 15,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.96 : 25,644.25 = 11,032.31 : x
  2. Step 2: Convert to fraction form
    18,590.96/25,644.25 = 11,032.31/x
  3. Step 3: Cross multiply
    18,590.96x = 25,644.25 × 11,032.31
  4. Step 4: Simplify right side
    18,590.96x = 282,915,315.72
  5. Step 5: Solve for x
    x = 282,915,315.72/18,590.96
  6. Step 6: Final answer
    x = 15,217.90

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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.