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Finding the Fourth Proportional to 22,122.70, 33,184.86 and 7,332.94

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Solution

The fourth proportional to 22,122.70, 33,184.86 and 7,332.94 is: 10,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.70 : 33,184.86 = 7,332.94 : x
  2. Step 2: Convert to fraction form
    22,122.70/33,184.86 = 7,332.94/x
  3. Step 3: Cross multiply
    22,122.70x = 33,184.86 × 7,332.94
  4. Step 4: Simplify right side
    22,122.70x = 243,342,587.29
  5. Step 5: Solve for x
    x = 243,342,587.29/22,122.70
  6. Step 6: Final answer
    x = 10,999.68

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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.