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Finding the Fourth Proportional to 64,814.67, 89,443.71 and 36,133.99

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Solution

The fourth proportional to 64,814.67, 89,443.71 and 36,133.99 is: 49,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,814.67 : 89,443.71 = 36,133.99 : x
  2. Step 2: Convert to fraction form
    64,814.67/89,443.71 = 36,133.99/x
  3. Step 3: Cross multiply
    64,814.67x = 89,443.71 × 36,133.99
  4. Step 4: Simplify right side
    64,814.67x = 3,231,957,899.09
  5. Step 5: Solve for x
    x = 3,231,957,899.09/64,814.67
  6. Step 6: Final answer
    x = 49,864.60

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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.