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Finding the Fourth Proportional to 64,737.96, 89,346.90 and 36,449.16

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Solution

The fourth proportional to 64,737.96, 89,346.90 and 36,449.16 is: 50,304.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,737.96 : 89,346.90 = 36,449.16 : x
  2. Step 2: Convert to fraction form
    64,737.96/89,346.90 = 36,449.16/x
  3. Step 3: Cross multiply
    64,737.96x = 89,346.90 × 36,449.16
  4. Step 4: Simplify right side
    64,737.96x = 3,256,619,453.60
  5. Step 5: Solve for x
    x = 3,256,619,453.60/64,737.96
  6. Step 6: Final answer
    x = 50,304.64

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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.