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Finding the Fourth Proportional to 70,464.92, 97,247.70 and 38,640.02

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Solution

The fourth proportional to 70,464.92, 97,247.70 and 38,640.02 is: 53,326.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,464.92 : 97,247.70 = 38,640.02 : x
  2. Step 2: Convert to fraction form
    70,464.92/97,247.70 = 38,640.02/x
  3. Step 3: Cross multiply
    70,464.92x = 97,247.70 × 38,640.02
  4. Step 4: Simplify right side
    70,464.92x = 3,757,653,072.95
  5. Step 5: Solve for x
    x = 3,757,653,072.95/70,464.92
  6. Step 6: Final answer
    x = 53,326.58

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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.