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Finding the Fourth Proportional to 64,663.31, 89,243.57 and 36,374.47

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Solution

The fourth proportional to 64,663.31, 89,243.57 and 36,374.47 is: 50,201.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,663.31 : 89,243.57 = 36,374.47 : x
  2. Step 2: Convert to fraction form
    64,663.31/89,243.57 = 36,374.47/x
  3. Step 3: Cross multiply
    64,663.31x = 89,243.57 × 36,374.47
  4. Step 4: Simplify right side
    64,663.31x = 3,246,187,427.49
  5. Step 5: Solve for x
    x = 3,246,187,427.49/64,663.31
  6. Step 6: Final answer
    x = 50,201.38

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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.