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Finding the Fourth Proportional to 18,580.52, 25,645.71 and 11,412.17

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Solution

The fourth proportional to 18,580.52, 25,645.71 and 11,412.17 is: 15,751.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.52 : 25,645.71 = 11,412.17 : x
  2. Step 2: Convert to fraction form
    18,580.52/25,645.71 = 11,412.17/x
  3. Step 3: Cross multiply
    18,580.52x = 25,645.71 × 11,412.17
  4. Step 4: Simplify right side
    18,580.52x = 292,673,202.29
  5. Step 5: Solve for x
    x = 292,673,202.29/18,580.52
  6. Step 6: Final answer
    x = 15,751.62

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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.