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Finding the Fourth Proportional to 64,874.40, 89,534.64 and 36,579.52

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Solution

The fourth proportional to 64,874.40, 89,534.64 and 36,579.52 is: 50,484.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,874.40 : 89,534.64 = 36,579.52 : x
  2. Step 2: Convert to fraction form
    64,874.40/89,534.64 = 36,579.52/x
  3. Step 3: Cross multiply
    64,874.40x = 89,534.64 × 36,579.52
  4. Step 4: Simplify right side
    64,874.40x = 3,275,134,154.57
  5. Step 5: Solve for x
    x = 3,275,134,154.57/64,874.40
  6. Step 6: Final answer
    x = 50,484.23

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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.