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Finding the Fourth Proportional to 64,878.51, 89,535.41 and 36,583.59

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Solution

The fourth proportional to 64,878.51, 89,535.41 and 36,583.59 is: 50,487.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,878.51 : 89,535.41 = 36,583.59 : x
  2. Step 2: Convert to fraction form
    64,878.51/89,535.41 = 36,583.59/x
  3. Step 3: Cross multiply
    64,878.51x = 89,535.41 × 36,583.59
  4. Step 4: Simplify right side
    64,878.51x = 3,275,526,099.33
  5. Step 5: Solve for x
    x = 3,275,526,099.33/64,878.51
  6. Step 6: Final answer
    x = 50,487.08

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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.