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Finding the Fourth Proportional to 7,803.91, 10,769.40 and 4,267.45

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Solution

The fourth proportional to 7,803.91, 10,769.40 and 4,267.45 is: 5,889.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.91 : 10,769.40 = 4,267.45 : x
  2. Step 2: Convert to fraction form
    7,803.91/10,769.40 = 4,267.45/x
  3. Step 3: Cross multiply
    7,803.91x = 10,769.40 × 4,267.45
  4. Step 4: Simplify right side
    7,803.91x = 45,957,876.03
  5. Step 5: Solve for x
    x = 45,957,876.03/7,803.91
  6. Step 6: Final answer
    x = 5,889.08

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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.