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Finding the Fourth Proportional to 64,842.92, 89,505.36 and 37,993.98

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Solution

The fourth proportional to 64,842.92, 89,505.36 and 37,993.98 is: 52,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,842.92 : 89,505.36 = 37,993.98 : x
  2. Step 2: Convert to fraction form
    64,842.92/89,505.36 = 37,993.98/x
  3. Step 3: Cross multiply
    64,842.92x = 89,505.36 × 37,993.98
  4. Step 4: Simplify right side
    64,842.92x = 3,400,664,857.73
  5. Step 5: Solve for x
    x = 3,400,664,857.73/64,842.92
  6. Step 6: Final answer
    x = 52,444.66

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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.