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Finding the Fourth Proportional to 64,392.60, 96,543.90 and 38,083.80

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Solution

The fourth proportional to 64,392.60, 96,543.90 and 38,083.80 is: 57,099.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,392.60 : 96,543.90 = 38,083.80 : x
  2. Step 2: Convert to fraction form
    64,392.60/96,543.90 = 38,083.80/x
  3. Step 3: Cross multiply
    64,392.60x = 96,543.90 × 38,083.80
  4. Step 4: Simplify right side
    64,392.60x = 3,676,758,578.82
  5. Step 5: Solve for x
    x = 3,676,758,578.82/64,392.60
  6. Step 6: Final answer
    x = 57,099.09

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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.