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Finding the Fourth Proportional to 22,402.80, 33,611.40 and 15,015.60

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Solution

The fourth proportional to 22,402.80, 33,611.40 and 15,015.60 is: 22,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,402.80 : 33,611.40 = 15,015.60 : x
  2. Step 2: Convert to fraction form
    22,402.80/33,611.40 = 15,015.60/x
  3. Step 3: Cross multiply
    22,402.80x = 33,611.40 × 15,015.60
  4. Step 4: Simplify right side
    22,402.80x = 504,695,337.84
  5. Step 5: Solve for x
    x = 504,695,337.84/22,402.80
  6. Step 6: Final answer
    x = 22,528.23

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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.