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Finding the Fourth Proportional to 4,724.96, 7,085.61 and 2,774.88

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Solution

The fourth proportional to 4,724.96, 7,085.61 and 2,774.88 is: 4,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.96 : 7,085.61 = 2,774.88 : x
  2. Step 2: Convert to fraction form
    4,724.96/7,085.61 = 2,774.88/x
  3. Step 3: Cross multiply
    4,724.96x = 7,085.61 × 2,774.88
  4. Step 4: Simplify right side
    4,724.96x = 19,661,717.48
  5. Step 5: Solve for x
    x = 19,661,717.48/4,724.96
  6. Step 6: Final answer
    x = 4,161.25

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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.