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Finding the Fourth Proportional to 66,596.24, 91,905.54 and 38,301.91

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Solution

The fourth proportional to 66,596.24, 91,905.54 and 38,301.91 is: 52,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,596.24 : 91,905.54 = 38,301.91 : x
  2. Step 2: Convert to fraction form
    66,596.24/91,905.54 = 38,301.91/x
  3. Step 3: Cross multiply
    66,596.24x = 91,905.54 × 38,301.91
  4. Step 4: Simplify right side
    66,596.24x = 3,520,157,721.58
  5. Step 5: Solve for x
    x = 3,520,157,721.58/66,596.24
  6. Step 6: Final answer
    x = 52,858.21

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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.