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Finding the Fourth Proportional to 3,518.96, 4,856.12 and 1,947.16

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Solution

The fourth proportional to 3,518.96, 4,856.12 and 1,947.16 is: 2,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.96 : 4,856.12 = 1,947.16 : x
  2. Step 2: Convert to fraction form
    3,518.96/4,856.12 = 1,947.16/x
  3. Step 3: Cross multiply
    3,518.96x = 4,856.12 × 1,947.16
  4. Step 4: Simplify right side
    3,518.96x = 9,455,642.62
  5. Step 5: Solve for x
    x = 9,455,642.62/3,518.96
  6. Step 6: Final answer
    x = 2,687.06

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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.