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Finding the Fourth Proportional to 64,486.94, 96,642.93 and 36,393.10

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Solution

The fourth proportional to 64,486.94, 96,642.93 and 36,393.10 is: 54,540.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,486.94 : 96,642.93 = 36,393.10 : x
  2. Step 2: Convert to fraction form
    64,486.94/96,642.93 = 36,393.10/x
  3. Step 3: Cross multiply
    64,486.94x = 96,642.93 × 36,393.10
  4. Step 4: Simplify right side
    64,486.94x = 3,517,136,049.56
  5. Step 5: Solve for x
    x = 3,517,136,049.56/64,486.94
  6. Step 6: Final answer
    x = 54,540.28

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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.