Home / 7,753.50-11,631.75-3,311.10

Finding the Fourth Proportional to 7,753.50, 11,631.75 and 3,311.10

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Solution

The fourth proportional to 7,753.50, 11,631.75 and 3,311.10 is: 4,967.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.50 : 11,631.75 = 3,311.10 : x
  2. Step 2: Convert to fraction form
    7,753.50/11,631.75 = 3,311.10/x
  3. Step 3: Cross multiply
    7,753.50x = 11,631.75 × 3,311.10
  4. Step 4: Simplify right side
    7,753.50x = 38,513,887.43
  5. Step 5: Solve for x
    x = 38,513,887.43/7,753.50
  6. Step 6: Final answer
    x = 4,967.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.