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Finding the Fourth Proportional to 64,902.71, 89,569.91 and 36,607.79

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Solution

The fourth proportional to 64,902.71, 89,569.91 and 36,607.79 is: 50,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,902.71 : 89,569.91 = 36,607.79 : x
  2. Step 2: Convert to fraction form
    64,902.71/89,569.91 = 36,607.79/x
  3. Step 3: Cross multiply
    64,902.71x = 89,569.91 × 36,607.79
  4. Step 4: Simplify right side
    64,902.71x = 3,278,956,099.27
  5. Step 5: Solve for x
    x = 3,278,956,099.27/64,902.71
  6. Step 6: Final answer
    x = 50,521.10

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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.