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Finding the Fourth Proportional to 22,506.90, 33,760.90 and 7,715.72

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Solution

The fourth proportional to 22,506.90, 33,760.90 and 7,715.72 is: 11,573.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,506.90 : 33,760.90 = 7,715.72 : x
  2. Step 2: Convert to fraction form
    22,506.90/33,760.90 = 7,715.72/x
  3. Step 3: Cross multiply
    22,506.90x = 33,760.90 × 7,715.72
  4. Step 4: Simplify right side
    22,506.90x = 260,489,651.35
  5. Step 5: Solve for x
    x = 260,489,651.35/22,506.90
  6. Step 6: Final answer
    x = 11,573.77

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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.