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Finding the Fourth Proportional to 70,066.75, 96,695.26 and 39,450.38

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Solution

The fourth proportional to 70,066.75, 96,695.26 and 39,450.38 is: 54,443.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,066.75 : 96,695.26 = 39,450.38 : x
  2. Step 2: Convert to fraction form
    70,066.75/96,695.26 = 39,450.38/x
  3. Step 3: Cross multiply
    70,066.75x = 96,695.26 × 39,450.38
  4. Step 4: Simplify right side
    70,066.75x = 3,814,665,071.72
  5. Step 5: Solve for x
    x = 3,814,665,071.72/70,066.75
  6. Step 6: Final answer
    x = 54,443.30

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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.