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Finding the Fourth Proportional to 64,648.35, 89,208.41 and 36,353.43

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Solution

The fourth proportional to 64,648.35, 89,208.41 and 36,353.43 is: 50,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,648.35 : 89,208.41 = 36,353.43 : x
  2. Step 2: Convert to fraction form
    64,648.35/89,208.41 = 36,353.43/x
  3. Step 3: Cross multiply
    64,648.35x = 89,208.41 × 36,353.43
  4. Step 4: Simplify right side
    64,648.35x = 3,243,031,506.58
  5. Step 5: Solve for x
    x = 3,243,031,506.58/64,648.35
  6. Step 6: Final answer
    x = 50,164.18

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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.