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Finding the Fourth Proportional to 70,930.62, 97,882.29 and 39,099.51

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Solution

The fourth proportional to 70,930.62, 97,882.29 and 39,099.51 is: 53,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,930.62 : 97,882.29 = 39,099.51 : x
  2. Step 2: Convert to fraction form
    70,930.62/97,882.29 = 39,099.51/x
  3. Step 3: Cross multiply
    70,930.62x = 97,882.29 × 39,099.51
  4. Step 4: Simplify right side
    70,930.62x = 3,827,149,576.68
  5. Step 5: Solve for x
    x = 3,827,149,576.68/70,930.62
  6. Step 6: Final answer
    x = 53,956.24

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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.