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Finding the Fourth Proportional to 64,880.71, 89,535.22 and 36,586.21

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Solution

The fourth proportional to 64,880.71, 89,535.22 and 36,586.21 is: 50,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,880.71 : 89,535.22 = 36,586.21 : x
  2. Step 2: Convert to fraction form
    64,880.71/89,535.22 = 36,586.21/x
  3. Step 3: Cross multiply
    64,880.71x = 89,535.22 × 36,586.21
  4. Step 4: Simplify right side
    64,880.71x = 3,275,753,730.71
  5. Step 5: Solve for x
    x = 3,275,753,730.71/64,880.71
  6. Step 6: Final answer
    x = 50,488.87

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1.5x scale

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.