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Finding the Fourth Proportional to 64,763.46, 89,386.14 and 36,469.32

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Solution

The fourth proportional to 64,763.46, 89,386.14 and 36,469.32 is: 50,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,763.46 : 89,386.14 = 36,469.32 : x
  2. Step 2: Convert to fraction form
    64,763.46/89,386.14 = 36,469.32/x
  3. Step 3: Cross multiply
    64,763.46x = 89,386.14 × 36,469.32
  4. Step 4: Simplify right side
    64,763.46x = 3,259,851,743.22
  5. Step 5: Solve for x
    x = 3,259,851,743.22/64,763.46
  6. Step 6: Final answer
    x = 50,334.74

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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.