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Finding the Fourth Proportional to 64,195.56, 88,562.01 and 38,687.43

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Solution

The fourth proportional to 64,195.56, 88,562.01 and 38,687.43 is: 53,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,195.56 : 88,562.01 = 38,687.43 : x
  2. Step 2: Convert to fraction form
    64,195.56/88,562.01 = 38,687.43/x
  3. Step 3: Cross multiply
    64,195.56x = 88,562.01 × 38,687.43
  4. Step 4: Simplify right side
    64,195.56x = 3,426,237,039.72
  5. Step 5: Solve for x
    x = 3,426,237,039.72/64,195.56
  6. Step 6: Final answer
    x = 53,371.87

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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.