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Finding the Fourth Proportional to 4,776.44, 7,164.48 and 1,965.17

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Solution

The fourth proportional to 4,776.44, 7,164.48 and 1,965.17 is: 2,947.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,776.44 : 7,164.48 = 1,965.17 : x
  2. Step 2: Convert to fraction form
    4,776.44/7,164.48 = 1,965.17/x
  3. Step 3: Cross multiply
    4,776.44x = 7,164.48 × 1,965.17
  4. Step 4: Simplify right side
    4,776.44x = 14,079,421.16
  5. Step 5: Solve for x
    x = 14,079,421.16/4,776.44
  6. Step 6: Final answer
    x = 2,947.68

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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.