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Finding the Fourth Proportional to 71,220.51, 106,755.44 and 26,828.06

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Solution

The fourth proportional to 71,220.51, 106,755.44 and 26,828.06 is: 40,213.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,220.51 : 106,755.44 = 26,828.06 : x
  2. Step 2: Convert to fraction form
    71,220.51/106,755.44 = 26,828.06/x
  3. Step 3: Cross multiply
    71,220.51x = 106,755.44 × 26,828.06
  4. Step 4: Simplify right side
    71,220.51x = 2,864,040,681.73
  5. Step 5: Solve for x
    x = 2,864,040,681.73/71,220.51
  6. Step 6: Final answer
    x = 40,213.71

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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.