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Finding the Fourth Proportional to 5,620.73, 7,758.79 and 5,030.24

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Solution

The fourth proportional to 5,620.73, 7,758.79 and 5,030.24 is: 6,943.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.73 : 7,758.79 = 5,030.24 : x
  2. Step 2: Convert to fraction form
    5,620.73/7,758.79 = 5,030.24/x
  3. Step 3: Cross multiply
    5,620.73x = 7,758.79 × 5,030.24
  4. Step 4: Simplify right side
    5,620.73x = 39,028,524.44
  5. Step 5: Solve for x
    x = 39,028,524.44/5,620.73
  6. Step 6: Final answer
    x = 6,943.68

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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.