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Finding the Fourth Proportional to 68,343.48, 94,314.78 and 38,535.48

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Solution

The fourth proportional to 68,343.48, 94,314.78 and 38,535.48 is: 53,179.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,343.48 : 94,314.78 = 38,535.48 : x
  2. Step 2: Convert to fraction form
    68,343.48/94,314.78 = 38,535.48/x
  3. Step 3: Cross multiply
    68,343.48x = 94,314.78 × 38,535.48
  4. Step 4: Simplify right side
    68,343.48x = 3,634,465,318.39
  5. Step 5: Solve for x
    x = 3,634,465,318.39/68,343.48
  6. Step 6: Final answer
    x = 53,179.40

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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.