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Finding the Fourth Proportional to 64,751.54, 89,356.83 and 36,071.52

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Solution

The fourth proportional to 64,751.54, 89,356.83 and 36,071.52 is: 49,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,751.54 : 89,356.83 = 36,071.52 : x
  2. Step 2: Convert to fraction form
    64,751.54/89,356.83 = 36,071.52/x
  3. Step 3: Cross multiply
    64,751.54x = 89,356.83 × 36,071.52
  4. Step 4: Simplify right side
    64,751.54x = 3,223,236,680.48
  5. Step 5: Solve for x
    x = 3,223,236,680.48/64,751.54
  6. Step 6: Final answer
    x = 49,778.54

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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.