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Finding the Fourth Proportional to 21,995.45, 32,995.35 and 6,200.45

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Solution

The fourth proportional to 21,995.45, 32,995.35 and 6,200.45 is: 9,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.45 : 32,995.35 = 6,200.45 : x
  2. Step 2: Convert to fraction form
    21,995.45/32,995.35 = 6,200.45/x
  3. Step 3: Cross multiply
    21,995.45x = 32,995.35 × 6,200.45
  4. Step 4: Simplify right side
    21,995.45x = 204,585,976.66
  5. Step 5: Solve for x
    x = 204,585,976.66/21,995.45
  6. Step 6: Final answer
    x = 9,301.29

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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.