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Finding the Fourth Proportional to 18,668.00, 25,761.92 and 11,114.62

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Solution

The fourth proportional to 18,668.00, 25,761.92 and 11,114.62 is: 15,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.00 : 25,761.92 = 11,114.62 : x
  2. Step 2: Convert to fraction form
    18,668.00/25,761.92 = 11,114.62/x
  3. Step 3: Cross multiply
    18,668.00x = 25,761.92 × 11,114.62
  4. Step 4: Simplify right side
    18,668.00x = 286,333,831.29
  5. Step 5: Solve for x
    x = 286,333,831.29/18,668.00
  6. Step 6: Final answer
    x = 15,338.21

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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.