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Finding the Fourth Proportional to 18,306.76, 25,263.31 and 9,923.26

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Solution

The fourth proportional to 18,306.76, 25,263.31 and 9,923.26 is: 13,694.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.76 : 25,263.31 = 9,923.26 : x
  2. Step 2: Convert to fraction form
    18,306.76/25,263.31 = 9,923.26/x
  3. Step 3: Cross multiply
    18,306.76x = 25,263.31 × 9,923.26
  4. Step 4: Simplify right side
    18,306.76x = 250,694,393.59
  5. Step 5: Solve for x
    x = 250,694,393.59/18,306.76
  6. Step 6: Final answer
    x = 13,694.09

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Half scale
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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.