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Finding the Fourth Proportional to 64,128.36, 96,228.78 and 34,545.48

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Solution

The fourth proportional to 64,128.36, 96,228.78 and 34,545.48 is: 51,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,128.36 : 96,228.78 = 34,545.48 : x
  2. Step 2: Convert to fraction form
    64,128.36/96,228.78 = 34,545.48/x
  3. Step 3: Cross multiply
    64,128.36x = 96,228.78 × 34,545.48
  4. Step 4: Simplify right side
    64,128.36x = 3,324,269,394.91
  5. Step 5: Solve for x
    x = 3,324,269,394.91/64,128.36
  6. Step 6: Final answer
    x = 51,837.74

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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.