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Finding the Fourth Proportional to 18,656.53, 27,984.98 and 8,800.45

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Solution

The fourth proportional to 18,656.53, 27,984.98 and 8,800.45 is: 13,200.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.53 : 27,984.98 = 8,800.45 : x
  2. Step 2: Convert to fraction form
    18,656.53/27,984.98 = 8,800.45/x
  3. Step 3: Cross multiply
    18,656.53x = 27,984.98 × 8,800.45
  4. Step 4: Simplify right side
    18,656.53x = 246,280,373.24
  5. Step 5: Solve for x
    x = 246,280,373.24/18,656.53
  6. Step 6: Final answer
    x = 13,200.76

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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.