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Finding the Fourth Proportional to 50,818.12, 70,164 and 38,860.62

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Solution

The fourth proportional to 50,818.12, 70,164 and 38,860.62 is: 53,654.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,818.12 : 70,164 = 38,860.62 : x
  2. Step 2: Convert to fraction form
    50,818.12/70,164 = 38,860.62/x
  3. Step 3: Cross multiply
    50,818.12x = 70,164 × 38,860.62
  4. Step 4: Simplify right side
    50,818.12x = 2,726,616,541.68
  5. Step 5: Solve for x
    x = 2,726,616,541.68/50,818.12
  6. Step 6: Final answer
    x = 53,654.42

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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.