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Finding the Fourth Proportional to 12,331.52, 18,496.08 and 6,783.04

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Solution

The fourth proportional to 12,331.52, 18,496.08 and 6,783.04 is: 10,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.52 : 18,496.08 = 6,783.04 : x
  2. Step 2: Convert to fraction form
    12,331.52/18,496.08 = 6,783.04/x
  3. Step 3: Cross multiply
    12,331.52x = 18,496.08 × 6,783.04
  4. Step 4: Simplify right side
    12,331.52x = 125,459,650.48
  5. Step 5: Solve for x
    x = 125,459,650.48/12,331.52
  6. Step 6: Final answer
    x = 10,173.90

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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.