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Finding the Fourth Proportional to 64,880.82, 89,535.54 and 36,586.52

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Solution

The fourth proportional to 64,880.82, 89,535.54 and 36,586.52 is: 50,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,880.82 : 89,535.54 = 36,586.52 : x
  2. Step 2: Convert to fraction form
    64,880.82/89,535.54 = 36,586.52/x
  3. Step 3: Cross multiply
    64,880.82x = 89,535.54 × 36,586.52
  4. Step 4: Simplify right side
    64,880.82x = 3,275,793,377.24
  5. Step 5: Solve for x
    x = 3,275,793,377.24/64,880.82
  6. Step 6: Final answer
    x = 50,489.40

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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.