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Finding the Fourth Proportional to 7,803.76, 10,769.04 and 4,266.96

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Solution

The fourth proportional to 7,803.76, 10,769.04 and 4,266.96 is: 5,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.76 : 10,769.04 = 4,266.96 : x
  2. Step 2: Convert to fraction form
    7,803.76/10,769.04 = 4,266.96/x
  3. Step 3: Cross multiply
    7,803.76x = 10,769.04 × 4,266.96
  4. Step 4: Simplify right side
    7,803.76x = 45,951,062.92
  5. Step 5: Solve for x
    x = 45,951,062.92/7,803.76
  6. Step 6: Final answer
    x = 5,888.32

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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.