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Finding the Fourth Proportional to 64,427.99, 96,512.82 and 51,123.52

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Solution

The fourth proportional to 64,427.99, 96,512.82 and 51,123.52 is: 76,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,427.99 : 96,512.82 = 51,123.52 : x
  2. Step 2: Convert to fraction form
    64,427.99/96,512.82 = 51,123.52/x
  3. Step 3: Cross multiply
    64,427.99x = 96,512.82 × 51,123.52
  4. Step 4: Simplify right side
    64,427.99x = 4,934,074,928.81
  5. Step 5: Solve for x
    x = 4,934,074,928.81/64,427.99
  6. Step 6: Final answer
    x = 76,582.78

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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.