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Finding the Fourth Proportional to 4,754.68, 6,560.55 and 3,078.22

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Solution

The fourth proportional to 4,754.68, 6,560.55 and 3,078.22 is: 4,247.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.68 : 6,560.55 = 3,078.22 : x
  2. Step 2: Convert to fraction form
    4,754.68/6,560.55 = 3,078.22/x
  3. Step 3: Cross multiply
    4,754.68x = 6,560.55 × 3,078.22
  4. Step 4: Simplify right side
    4,754.68x = 20,194,816.22
  5. Step 5: Solve for x
    x = 20,194,816.22/4,754.68
  6. Step 6: Final answer
    x = 4,247.36

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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.