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Finding the Fourth Proportional to 21,994.25, 32,990.92 and 5,354.38

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Solution

The fourth proportional to 21,994.25, 32,990.92 and 5,354.38 is: 8,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,994.25 : 32,990.92 = 5,354.38 : x
  2. Step 2: Convert to fraction form
    21,994.25/32,990.92 = 5,354.38/x
  3. Step 3: Cross multiply
    21,994.25x = 32,990.92 × 5,354.38
  4. Step 4: Simplify right side
    21,994.25x = 176,645,826.37
  5. Step 5: Solve for x
    x = 176,645,826.37/21,994.25
  6. Step 6: Final answer
    x = 8,031.45

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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.