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Finding the Fourth Proportional to 41,993.40, 62,903.70 and 21,228.60

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Solution

The fourth proportional to 41,993.40, 62,903.70 and 21,228.60 is: 31,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,993.40 : 62,903.70 = 21,228.60 : x
  2. Step 2: Convert to fraction form
    41,993.40/62,903.70 = 21,228.60/x
  3. Step 3: Cross multiply
    41,993.40x = 62,903.70 × 21,228.60
  4. Step 4: Simplify right side
    41,993.40x = 1,335,357,485.82
  5. Step 5: Solve for x
    x = 1,335,357,485.82/41,993.40
  6. Step 6: Final answer
    x = 31,799.22

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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.