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Finding the Fourth Proportional to 70,015.56, 96,620.43 and 38,184.39

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Solution

The fourth proportional to 70,015.56, 96,620.43 and 38,184.39 is: 52,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,015.56 : 96,620.43 = 38,184.39 : x
  2. Step 2: Convert to fraction form
    70,015.56/96,620.43 = 38,184.39/x
  3. Step 3: Cross multiply
    70,015.56x = 96,620.43 × 38,184.39
  4. Step 4: Simplify right side
    70,015.56x = 3,689,392,181.09
  5. Step 5: Solve for x
    x = 3,689,392,181.09/70,015.56
  6. Step 6: Final answer
    x = 52,693.89

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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.