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Finding the Fourth Proportional to 64,662.71, 89,233.68 and 36,368.39

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Solution

The fourth proportional to 64,662.71, 89,233.68 and 36,368.39 is: 50,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,662.71 : 89,233.68 = 36,368.39 : x
  2. Step 2: Convert to fraction form
    64,662.71/89,233.68 = 36,368.39/x
  3. Step 3: Cross multiply
    64,662.71x = 89,233.68 × 36,368.39
  4. Step 4: Simplify right side
    64,662.71x = 3,245,285,634.84
  5. Step 5: Solve for x
    x = 3,245,285,634.84/64,662.71
  6. Step 6: Final answer
    x = 50,187.90

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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.