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Finding the Fourth Proportional to 70,408.71, 97,160.31 and 38,576.93

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Solution

The fourth proportional to 70,408.71, 97,160.31 and 38,576.93 is: 53,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,408.71 : 97,160.31 = 38,576.93 : x
  2. Step 2: Convert to fraction form
    70,408.71/97,160.31 = 38,576.93/x
  3. Step 3: Cross multiply
    70,408.71x = 97,160.31 × 38,576.93
  4. Step 4: Simplify right side
    70,408.71x = 3,748,145,991.85
  5. Step 5: Solve for x
    x = 3,748,145,991.85/70,408.71
  6. Step 6: Final answer
    x = 53,234.12

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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.