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Finding the Fourth Proportional to 64,622.52, 89,178.30 and 36,333

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Solution

The fourth proportional to 64,622.52, 89,178.30 and 36,333 is: 50,139.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,622.52 : 89,178.30 = 36,333 : x
  2. Step 2: Convert to fraction form
    64,622.52/89,178.30 = 36,333/x
  3. Step 3: Cross multiply
    64,622.52x = 89,178.30 × 36,333
  4. Step 4: Simplify right side
    64,622.52x = 3,240,115,173.90
  5. Step 5: Solve for x
    x = 3,240,115,173.90/64,622.52
  6. Step 6: Final answer
    x = 50,139.10

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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.