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Finding the Fourth Proportional to 64,748.43, 89,365.41 and 36,454.32

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Solution

The fourth proportional to 64,748.43, 89,365.41 and 36,454.32 is: 50,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,748.43 : 89,365.41 = 36,454.32 : x
  2. Step 2: Convert to fraction form
    64,748.43/89,365.41 = 36,454.32/x
  3. Step 3: Cross multiply
    64,748.43x = 89,365.41 × 36,454.32
  4. Step 4: Simplify right side
    64,748.43x = 3,257,755,253.07
  5. Step 5: Solve for x
    x = 3,257,755,253.07/64,748.43
  6. Step 6: Final answer
    x = 50,314.04

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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.