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Finding the Fourth Proportional to 3,259.81, 4,889.72 and 951.31

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Solution

The fourth proportional to 3,259.81, 4,889.72 and 951.31 is: 1,426.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.81 : 4,889.72 = 951.31 : x
  2. Step 2: Convert to fraction form
    3,259.81/4,889.72 = 951.31/x
  3. Step 3: Cross multiply
    3,259.81x = 4,889.72 × 951.31
  4. Step 4: Simplify right side
    3,259.81x = 4,651,639.53
  5. Step 5: Solve for x
    x = 4,651,639.53/3,259.81
  6. Step 6: Final answer
    x = 1,426.97

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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.