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Finding the Fourth Proportional to 64,622.82, 89,187.53 and 36,328.53

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Solution

The fourth proportional to 64,622.82, 89,187.53 and 36,328.53 is: 50,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,622.82 : 89,187.53 = 36,328.53 : x
  2. Step 2: Convert to fraction form
    64,622.82/89,187.53 = 36,328.53/x
  3. Step 3: Cross multiply
    64,622.82x = 89,187.53 × 36,328.53
  4. Step 4: Simplify right side
    64,622.82x = 3,240,051,677.59
  5. Step 5: Solve for x
    x = 3,240,051,677.59/64,622.82
  6. Step 6: Final answer
    x = 50,137.89

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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.