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Finding the Fourth Proportional to 7,750.76, 11,622.50 and 2,816.92

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Solution

The fourth proportional to 7,750.76, 11,622.50 and 2,816.92 is: 4,224.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.76 : 11,622.50 = 2,816.92 : x
  2. Step 2: Convert to fraction form
    7,750.76/11,622.50 = 2,816.92/x
  3. Step 3: Cross multiply
    7,750.76x = 11,622.50 × 2,816.92
  4. Step 4: Simplify right side
    7,750.76x = 32,739,652.70
  5. Step 5: Solve for x
    x = 32,739,652.70/7,750.76
  6. Step 6: Final answer
    x = 4,224.06

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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.