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Finding the Fourth Proportional to 68,410.56, 94,405.20 and 38,602.56

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Solution

The fourth proportional to 68,410.56, 94,405.20 and 38,602.56 is: 53,270.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,410.56 : 94,405.20 = 38,602.56 : x
  2. Step 2: Convert to fraction form
    68,410.56/94,405.20 = 38,602.56/x
  3. Step 3: Cross multiply
    68,410.56x = 94,405.20 × 38,602.56
  4. Step 4: Simplify right side
    68,410.56x = 3,644,282,397.31
  5. Step 5: Solve for x
    x = 3,644,282,397.31/68,410.56
  6. Step 6: Final answer
    x = 53,270.76

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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.