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Finding the Fourth Proportional to 3,607.56, 4,976.10 and 3,013.56

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Solution

The fourth proportional to 3,607.56, 4,976.10 and 3,013.56 is: 4,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.56 : 4,976.10 = 3,013.56 : x
  2. Step 2: Convert to fraction form
    3,607.56/4,976.10 = 3,013.56/x
  3. Step 3: Cross multiply
    3,607.56x = 4,976.10 × 3,013.56
  4. Step 4: Simplify right side
    3,607.56x = 14,995,775.92
  5. Step 5: Solve for x
    x = 14,995,775.92/3,607.56
  6. Step 6: Final answer
    x = 4,156.76

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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.