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Finding the Fourth Proportional to 64,368.91, 88,832.74 and 36,076.42

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Solution

The fourth proportional to 64,368.91, 88,832.74 and 36,076.42 is: 49,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,368.91 : 88,832.74 = 36,076.42 : x
  2. Step 2: Convert to fraction form
    64,368.91/88,832.74 = 36,076.42/x
  3. Step 3: Cross multiply
    64,368.91x = 88,832.74 × 36,076.42
  4. Step 4: Simplify right side
    64,368.91x = 3,204,767,237.99
  5. Step 5: Solve for x
    x = 3,204,767,237.99/64,368.91
  6. Step 6: Final answer
    x = 49,787.50

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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.