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Finding the Fourth Proportional to 8,062.80, 11,127.15 and 4,919.01

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Solution

The fourth proportional to 8,062.80, 11,127.15 and 4,919.01 is: 6,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,062.80 : 11,127.15 = 4,919.01 : x
  2. Step 2: Convert to fraction form
    8,062.80/11,127.15 = 4,919.01/x
  3. Step 3: Cross multiply
    8,062.80x = 11,127.15 × 4,919.01
  4. Step 4: Simplify right side
    8,062.80x = 54,734,562.12
  5. Step 5: Solve for x
    x = 54,734,562.12/8,062.80
  6. Step 6: Final answer
    x = 6,788.53

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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.