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Finding the Fourth Proportional to 21,995.74, 32,994.02 and 5,355.91

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Solution

The fourth proportional to 21,995.74, 32,994.02 and 5,355.91 is: 8,033.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.74 : 32,994.02 = 5,355.91 : x
  2. Step 2: Convert to fraction form
    21,995.74/32,994.02 = 5,355.91/x
  3. Step 3: Cross multiply
    21,995.74x = 32,994.02 × 5,355.91
  4. Step 4: Simplify right side
    21,995.74x = 176,713,001.66
  5. Step 5: Solve for x
    x = 176,713,001.66/21,995.74
  6. Step 6: Final answer
    x = 8,033.96

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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.