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Finding the Fourth Proportional to 5,253.50, 7,249.64 and 2,895.50

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Solution

The fourth proportional to 5,253.50, 7,249.64 and 2,895.50 is: 3,995.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.50 : 7,249.64 = 2,895.50 : x
  2. Step 2: Convert to fraction form
    5,253.50/7,249.64 = 2,895.50/x
  3. Step 3: Cross multiply
    5,253.50x = 7,249.64 × 2,895.50
  4. Step 4: Simplify right side
    5,253.50x = 20,991,332.62
  5. Step 5: Solve for x
    x = 20,991,332.62/5,253.50
  6. Step 6: Final answer
    x = 3,995.69

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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.