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Finding the Fourth Proportional to 70,522.78, 97,321.49 and 38,693.43

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Solution

The fourth proportional to 70,522.78, 97,321.49 and 38,693.43 is: 53,396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,522.78 : 97,321.49 = 38,693.43 : x
  2. Step 2: Convert to fraction form
    70,522.78/97,321.49 = 38,693.43/x
  3. Step 3: Cross multiply
    70,522.78x = 97,321.49 × 38,693.43
  4. Step 4: Simplify right side
    70,522.78x = 3,765,702,260.81
  5. Step 5: Solve for x
    x = 3,765,702,260.81/70,522.78
  6. Step 6: Final answer
    x = 53,396.96

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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.