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Finding the Fourth Proportional to 70,576.77, 97,391.52 and 38,742.96

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Solution

The fourth proportional to 70,576.77, 97,391.52 and 38,742.96 is: 53,462.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,576.77 : 97,391.52 = 38,742.96 : x
  2. Step 2: Convert to fraction form
    70,576.77/97,391.52 = 38,742.96/x
  3. Step 3: Cross multiply
    70,576.77x = 97,391.52 × 38,742.96
  4. Step 4: Simplify right side
    70,576.77x = 3,773,235,763.70
  5. Step 5: Solve for x
    x = 3,773,235,763.70/70,576.77
  6. Step 6: Final answer
    x = 53,462.86

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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.