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Finding the Fourth Proportional to 8,531.13, 11,773.91 and 4,754.64

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Solution

The fourth proportional to 8,531.13, 11,773.91 and 4,754.64 is: 6,561.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.13 : 11,773.91 = 4,754.64 : x
  2. Step 2: Convert to fraction form
    8,531.13/11,773.91 = 4,754.64/x
  3. Step 3: Cross multiply
    8,531.13x = 11,773.91 × 4,754.64
  4. Step 4: Simplify right side
    8,531.13x = 55,980,715.33
  5. Step 5: Solve for x
    x = 55,980,715.33/8,531.13
  6. Step 6: Final answer
    x = 6,561.93

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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.