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Finding the Fourth Proportional to 64,500.25, 89,007.76 and 35,821.39

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Solution

The fourth proportional to 64,500.25, 89,007.76 and 35,821.39 is: 49,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,500.25 : 89,007.76 = 35,821.39 : x
  2. Step 2: Convert to fraction form
    64,500.25/89,007.76 = 35,821.39/x
  3. Step 3: Cross multiply
    64,500.25x = 89,007.76 × 35,821.39
  4. Step 4: Simplify right side
    64,500.25x = 3,188,381,683.99
  5. Step 5: Solve for x
    x = 3,188,381,683.99/64,500.25
  6. Step 6: Final answer
    x = 49,432.08

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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.