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Finding the Fourth Proportional to 8,257.93, 11,395.96 and 4,721.22

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Solution

The fourth proportional to 8,257.93, 11,395.96 and 4,721.22 is: 6,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.93 : 11,395.96 = 4,721.22 : x
  2. Step 2: Convert to fraction form
    8,257.93/11,395.96 = 4,721.22/x
  3. Step 3: Cross multiply
    8,257.93x = 11,395.96 × 4,721.22
  4. Step 4: Simplify right side
    8,257.93x = 53,802,822.47
  5. Step 5: Solve for x
    x = 53,802,822.47/8,257.93
  6. Step 6: Final answer
    x = 6,515.29

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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.