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Finding the Fourth Proportional to 68,561.67, 94,614.42 and 38,347.05

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Solution

The fourth proportional to 68,561.67, 94,614.42 and 38,347.05 is: 52,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,561.67 : 94,614.42 = 38,347.05 : x
  2. Step 2: Convert to fraction form
    68,561.67/94,614.42 = 38,347.05/x
  3. Step 3: Cross multiply
    68,561.67x = 94,614.42 × 38,347.05
  4. Step 4: Simplify right side
    68,561.67x = 3,628,183,894.46
  5. Step 5: Solve for x
    x = 3,628,183,894.46/68,561.67
  6. Step 6: Final answer
    x = 52,918.55

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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.