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Finding the Fourth Proportional to 70,662.58, 97,515.90 and 38,832.01

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Solution

The fourth proportional to 70,662.58, 97,515.90 and 38,832.01 is: 53,589.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,662.58 : 97,515.90 = 38,832.01 : x
  2. Step 2: Convert to fraction form
    70,662.58/97,515.90 = 38,832.01/x
  3. Step 3: Cross multiply
    70,662.58x = 97,515.90 × 38,832.01
  4. Step 4: Simplify right side
    70,662.58x = 3,786,738,160.17
  5. Step 5: Solve for x
    x = 3,786,738,160.17/70,662.58
  6. Step 6: Final answer
    x = 53,589.02

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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.