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Finding the Fourth Proportional to 64,996.65, 89,693.73 and 36,314.55

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Solution

The fourth proportional to 64,996.65, 89,693.73 and 36,314.55 is: 50,113.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,996.65 : 89,693.73 = 36,314.55 : x
  2. Step 2: Convert to fraction form
    64,996.65/89,693.73 = 36,314.55/x
  3. Step 3: Cross multiply
    64,996.65x = 89,693.73 × 36,314.55
  4. Step 4: Simplify right side
    64,996.65x = 3,257,187,442.77
  5. Step 5: Solve for x
    x = 3,257,187,442.77/64,996.65
  6. Step 6: Final answer
    x = 50,113.16

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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.