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Finding the Fourth Proportional to 21,994.54, 32,967.04 and 10,909.18

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Solution

The fourth proportional to 21,994.54, 32,967.04 and 10,909.18 is: 16,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,994.54 : 32,967.04 = 10,909.18 : x
  2. Step 2: Convert to fraction form
    21,994.54/32,967.04 = 10,909.18/x
  3. Step 3: Cross multiply
    21,994.54x = 32,967.04 × 10,909.18
  4. Step 4: Simplify right side
    21,994.54x = 359,643,373.43
  5. Step 5: Solve for x
    x = 359,643,373.43/21,994.54
  6. Step 6: Final answer
    x = 16,351.48

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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.