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Finding the Fourth Proportional to 64,687.40, 89,266.29 and 36,006.11

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Solution

The fourth proportional to 64,687.40, 89,266.29 and 36,006.11 is: 49,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,687.40 : 89,266.29 = 36,006.11 : x
  2. Step 2: Convert to fraction form
    64,687.40/89,266.29 = 36,006.11/x
  3. Step 3: Cross multiply
    64,687.40x = 89,266.29 × 36,006.11
  4. Step 4: Simplify right side
    64,687.40x = 3,214,131,857.03
  5. Step 5: Solve for x
    x = 3,214,131,857.03/64,687.40
  6. Step 6: Final answer
    x = 49,687.14

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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.