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Finding the Fourth Proportional to 64,972.93, 89,635.93 and 43,759.03

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Solution

The fourth proportional to 64,972.93, 89,635.93 and 43,759.03 is: 60,369.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,972.93 : 89,635.93 = 43,759.03 : x
  2. Step 2: Convert to fraction form
    64,972.93/89,635.93 = 43,759.03/x
  3. Step 3: Cross multiply
    64,972.93x = 89,635.93 × 43,759.03
  4. Step 4: Simplify right side
    64,972.93x = 3,922,381,349.95
  5. Step 5: Solve for x
    x = 3,922,381,349.95/64,972.93
  6. Step 6: Final answer
    x = 60,369.47

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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.