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Finding the Fourth Proportional to 18,327.70, 25,292.52 and 9,944.20

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Solution

The fourth proportional to 18,327.70, 25,292.52 and 9,944.20 is: 13,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.70 : 25,292.52 = 9,944.20 : x
  2. Step 2: Convert to fraction form
    18,327.70/25,292.52 = 9,944.20/x
  3. Step 3: Cross multiply
    18,327.70x = 25,292.52 × 9,944.20
  4. Step 4: Simplify right side
    18,327.70x = 251,513,877.38
  5. Step 5: Solve for x
    x = 251,513,877.38/18,327.70
  6. Step 6: Final answer
    x = 13,723.16

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Half scale
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Double scale
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Similar ratio
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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.