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Finding the Fourth Proportional to 70,576.83, 97,396.20 and 38,311.56

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Solution

The fourth proportional to 70,576.83, 97,396.20 and 38,311.56 is: 52,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,576.83 : 97,396.20 = 38,311.56 : x
  2. Step 2: Convert to fraction form
    70,576.83/97,396.20 = 38,311.56/x
  3. Step 3: Cross multiply
    70,576.83x = 97,396.20 × 38,311.56
  4. Step 4: Simplify right side
    70,576.83x = 3,731,400,360.07
  5. Step 5: Solve for x
    x = 3,731,400,360.07/70,576.83
  6. Step 6: Final answer
    x = 52,870.05

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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.