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Finding the Fourth Proportional to 23,987.36, 35,981.04 and 12,293.12

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Solution

The fourth proportional to 23,987.36, 35,981.04 and 12,293.12 is: 18,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,987.36 : 35,981.04 = 12,293.12 : x
  2. Step 2: Convert to fraction form
    23,987.36/35,981.04 = 12,293.12/x
  3. Step 3: Cross multiply
    23,987.36x = 35,981.04 × 12,293.12
  4. Step 4: Simplify right side
    23,987.36x = 442,319,062.54
  5. Step 5: Solve for x
    x = 442,319,062.54/23,987.36
  6. Step 6: Final answer
    x = 18,439.68

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.