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Finding the Fourth Proportional to 64,647.92, 89,213.18 and 36,353.64

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Solution

The fourth proportional to 64,647.92, 89,213.18 and 36,353.64 is: 50,167.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,647.92 : 89,213.18 = 36,353.64 : x
  2. Step 2: Convert to fraction form
    64,647.92/89,213.18 = 36,353.64/x
  3. Step 3: Cross multiply
    64,647.92x = 89,213.18 × 36,353.64
  4. Step 4: Simplify right side
    64,647.92x = 3,243,223,828.98
  5. Step 5: Solve for x
    x = 3,243,223,828.98/64,647.92
  6. Step 6: Final answer
    x = 50,167.49

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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.