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Finding the Fourth Proportional to 64,843.38, 89,485.29 and 37,990.26

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Solution

The fourth proportional to 64,843.38, 89,485.29 and 37,990.26 is: 52,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,843.38 : 89,485.29 = 37,990.26 : x
  2. Step 2: Convert to fraction form
    64,843.38/89,485.29 = 37,990.26/x
  3. Step 3: Cross multiply
    64,843.38x = 89,485.29 × 37,990.26
  4. Step 4: Simplify right side
    64,843.38x = 3,399,569,433.28
  5. Step 5: Solve for x
    x = 3,399,569,433.28/64,843.38
  6. Step 6: Final answer
    x = 52,427.39

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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.