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Finding the Fourth Proportional to 64,326.36, 88,769.34 and 36,031.96

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Solution

The fourth proportional to 64,326.36, 88,769.34 and 36,031.96 is: 49,723.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,326.36 : 88,769.34 = 36,031.96 : x
  2. Step 2: Convert to fraction form
    64,326.36/88,769.34 = 36,031.96/x
  3. Step 3: Cross multiply
    64,326.36x = 88,769.34 × 36,031.96
  4. Step 4: Simplify right side
    64,326.36x = 3,198,533,308.11
  5. Step 5: Solve for x
    x = 3,198,533,308.11/64,326.36
  6. Step 6: Final answer
    x = 49,723.52

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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.