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Finding the Fourth Proportional to 7,793.28, 10,754.55 and 4,256.50

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Solution

The fourth proportional to 7,793.28, 10,754.55 and 4,256.50 is: 5,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.28 : 10,754.55 = 4,256.50 : x
  2. Step 2: Convert to fraction form
    7,793.28/10,754.55 = 4,256.50/x
  3. Step 3: Cross multiply
    7,793.28x = 10,754.55 × 4,256.50
  4. Step 4: Simplify right side
    7,793.28x = 45,776,742.08
  5. Step 5: Solve for x
    x = 45,776,742.08/7,793.28
  6. Step 6: Final answer
    x = 5,873.88

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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.