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Finding the Fourth Proportional to 64,643.77, 89,216.52 and 36,349.25

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Solution

The fourth proportional to 64,643.77, 89,216.52 and 36,349.25 is: 50,166.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,643.77 : 89,216.52 = 36,349.25 : x
  2. Step 2: Convert to fraction form
    64,643.77/89,216.52 = 36,349.25/x
  3. Step 3: Cross multiply
    64,643.77x = 89,216.52 × 36,349.25
  4. Step 4: Simplify right side
    64,643.77x = 3,242,953,589.61
  5. Step 5: Solve for x
    x = 3,242,953,589.61/64,643.77
  6. Step 6: Final answer
    x = 50,166.53

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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.