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Finding the Fourth Proportional to 4,797.85, 7,187.54 and 2,943.55

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Solution

The fourth proportional to 4,797.85, 7,187.54 and 2,943.55 is: 4,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,797.85 : 7,187.54 = 2,943.55 : x
  2. Step 2: Convert to fraction form
    4,797.85/7,187.54 = 2,943.55/x
  3. Step 3: Cross multiply
    4,797.85x = 7,187.54 × 2,943.55
  4. Step 4: Simplify right side
    4,797.85x = 21,156,832.71
  5. Step 5: Solve for x
    x = 21,156,832.71/4,797.85
  6. Step 6: Final answer
    x = 4,409.65

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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.