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Finding the Fourth Proportional to 59,906.80, 82,697.90 and 38,696.40

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Solution

The fourth proportional to 59,906.80, 82,697.90 and 38,696.40 is: 53,418.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,906.80 : 82,697.90 = 38,696.40 : x
  2. Step 2: Convert to fraction form
    59,906.80/82,697.90 = 38,696.40/x
  3. Step 3: Cross multiply
    59,906.80x = 82,697.90 × 38,696.40
  4. Step 4: Simplify right side
    59,906.80x = 3,200,111,017.56
  5. Step 5: Solve for x
    x = 3,200,111,017.56/59,906.80
  6. Step 6: Final answer
    x = 53,418.16

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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.