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Finding the Fourth Proportional to 22,070.70, 33,107.07 and 7,280.91

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Solution

The fourth proportional to 22,070.70, 33,107.07 and 7,280.91 is: 10,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070.70 : 33,107.07 = 7,280.91 : x
  2. Step 2: Convert to fraction form
    22,070.70/33,107.07 = 7,280.91/x
  3. Step 3: Cross multiply
    22,070.70x = 33,107.07 × 7,280.91
  4. Step 4: Simplify right side
    22,070.70x = 241,049,597.03
  5. Step 5: Solve for x
    x = 241,049,597.03/22,070.70
  6. Step 6: Final answer
    x = 10,921.70

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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.