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Finding the Fourth Proportional to 8,505.72, 11,733.80 and 5,522.49

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Solution

The fourth proportional to 8,505.72, 11,733.80 and 5,522.49 is: 7,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.72 : 11,733.80 = 5,522.49 : x
  2. Step 2: Convert to fraction form
    8,505.72/11,733.80 = 5,522.49/x
  3. Step 3: Cross multiply
    8,505.72x = 11,733.80 × 5,522.49
  4. Step 4: Simplify right side
    8,505.72x = 64,799,721.55
  5. Step 5: Solve for x
    x = 64,799,721.55/8,505.72
  6. Step 6: Final answer
    x = 7,618.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.