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Finding the Fourth Proportional to 4,724.11, 7,086.17 and 1,762.57

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Solution

The fourth proportional to 4,724.11, 7,086.17 and 1,762.57 is: 2,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.11 : 7,086.17 = 1,762.57 : x
  2. Step 2: Convert to fraction form
    4,724.11/7,086.17 = 1,762.57/x
  3. Step 3: Cross multiply
    4,724.11x = 7,086.17 × 1,762.57
  4. Step 4: Simplify right side
    4,724.11x = 12,489,870.66
  5. Step 5: Solve for x
    x = 12,489,870.66/4,724.11
  6. Step 6: Final answer
    x = 2,643.86

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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.