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Finding the Fourth Proportional to 64,549.69, 89,078.60 and 36,255.38

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Solution

The fourth proportional to 64,549.69, 89,078.60 and 36,255.38 is: 50,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,549.69 : 89,078.60 = 36,255.38 : x
  2. Step 2: Convert to fraction form
    64,549.69/89,078.60 = 36,255.38/x
  3. Step 3: Cross multiply
    64,549.69x = 89,078.60 × 36,255.38
  4. Step 4: Simplify right side
    64,549.69x = 3,229,578,138.11
  5. Step 5: Solve for x
    x = 3,229,578,138.11/64,549.69
  6. Step 6: Final answer
    x = 50,032.44

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1.5x scale

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.