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Finding the Fourth Proportional to 8,955.68, 13,433.84 and 3,407.98

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Solution

The fourth proportional to 8,955.68, 13,433.84 and 3,407.98 is: 5,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.68 : 13,433.84 = 3,407.98 : x
  2. Step 2: Convert to fraction form
    8,955.68/13,433.84 = 3,407.98/x
  3. Step 3: Cross multiply
    8,955.68x = 13,433.84 × 3,407.98
  4. Step 4: Simplify right side
    8,955.68x = 45,782,258.04
  5. Step 5: Solve for x
    x = 45,782,258.04/8,955.68
  6. Step 6: Final answer
    x = 5,112.09

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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.