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Finding the Fourth Proportional to 22,024.80, 33,039.36 and 7,985.88

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Solution

The fourth proportional to 22,024.80, 33,039.36 and 7,985.88 is: 11,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,024.80 : 33,039.36 = 7,985.88 : x
  2. Step 2: Convert to fraction form
    22,024.80/33,039.36 = 7,985.88/x
  3. Step 3: Cross multiply
    22,024.80x = 33,039.36 × 7,985.88
  4. Step 4: Simplify right side
    22,024.80x = 263,848,364.24
  5. Step 5: Solve for x
    x = 263,848,364.24/22,024.80
  6. Step 6: Final answer
    x = 11,979.60

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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.