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Finding the Fourth Proportional to 64,734.76, 89,336.36 and 36,055.48

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Solution

The fourth proportional to 64,734.76, 89,336.36 and 36,055.48 is: 49,757.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,734.76 : 89,336.36 = 36,055.48 : x
  2. Step 2: Convert to fraction form
    64,734.76/89,336.36 = 36,055.48/x
  3. Step 3: Cross multiply
    64,734.76x = 89,336.36 × 36,055.48
  4. Step 4: Simplify right side
    64,734.76x = 3,221,065,341.25
  5. Step 5: Solve for x
    x = 3,221,065,341.25/64,734.76
  6. Step 6: Final answer
    x = 49,757.89

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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.