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Finding the Fourth Proportional to 22,016.80, 32,976.60 and 19,554.40

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Solution

The fourth proportional to 22,016.80, 32,976.60 and 19,554.40 is: 29,288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,016.80 : 32,976.60 = 19,554.40 : x
  2. Step 2: Convert to fraction form
    22,016.80/32,976.60 = 19,554.40/x
  3. Step 3: Cross multiply
    22,016.80x = 32,976.60 × 19,554.40
  4. Step 4: Simplify right side
    22,016.80x = 644,837,627.04
  5. Step 5: Solve for x
    x = 644,837,627.04/22,016.80
  6. Step 6: Final answer
    x = 29,288.44

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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.