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Finding the Fourth Proportional to 7,003.80, 10,505.58 and 2,843.76

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Solution

The fourth proportional to 7,003.80, 10,505.58 and 2,843.76 is: 4,265.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.80 : 10,505.58 = 2,843.76 : x
  2. Step 2: Convert to fraction form
    7,003.80/10,505.58 = 2,843.76/x
  3. Step 3: Cross multiply
    7,003.80x = 10,505.58 × 2,843.76
  4. Step 4: Simplify right side
    7,003.80x = 29,875,348.18
  5. Step 5: Solve for x
    x = 29,875,348.18/7,003.80
  6. Step 6: Final answer
    x = 4,265.59

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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.