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Finding the Fourth Proportional to 64,023.40, 95,912.70 and 34,431.40

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Solution

The fourth proportional to 64,023.40, 95,912.70 and 34,431.40 is: 51,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,023.40 : 95,912.70 = 34,431.40 : x
  2. Step 2: Convert to fraction form
    64,023.40/95,912.70 = 34,431.40/x
  3. Step 3: Cross multiply
    64,023.40x = 95,912.70 × 34,431.40
  4. Step 4: Simplify right side
    64,023.40x = 3,302,408,538.78
  5. Step 5: Solve for x
    x = 3,302,408,538.78/64,023.40
  6. Step 6: Final answer
    x = 51,581.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.