Home / 18,572.04-25,615.11-12,906.72

Finding the Fourth Proportional to 18,572.04, 25,615.11 and 12,906.72

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Solution

The fourth proportional to 18,572.04, 25,615.11 and 12,906.72 is: 17,801.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,572.04 : 25,615.11 = 12,906.72 : x
  2. Step 2: Convert to fraction form
    18,572.04/25,615.11 = 12,906.72/x
  3. Step 3: Cross multiply
    18,572.04x = 25,615.11 × 12,906.72
  4. Step 4: Simplify right side
    18,572.04x = 330,607,052.54
  5. Step 5: Solve for x
    x = 330,607,052.54/18,572.04
  6. Step 6: Final answer
    x = 17,801.33

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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.