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Finding the Fourth Proportional to 41,995.40, 62,906.70 and 21,230.60

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Solution

The fourth proportional to 41,995.40, 62,906.70 and 21,230.60 is: 31,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,995.40 : 62,906.70 = 21,230.60 : x
  2. Step 2: Convert to fraction form
    41,995.40/62,906.70 = 21,230.60/x
  3. Step 3: Cross multiply
    41,995.40x = 62,906.70 × 21,230.60
  4. Step 4: Simplify right side
    41,995.40x = 1,335,546,985.02
  5. Step 5: Solve for x
    x = 1,335,546,985.02/41,995.40
  6. Step 6: Final answer
    x = 31,802.22

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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.