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Finding the Fourth Proportional to 70,032.33, 96,640.70 and 39,813.39

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Solution

The fourth proportional to 70,032.33, 96,640.70 and 39,813.39 is: 54,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,032.33 : 96,640.70 = 39,813.39 : x
  2. Step 2: Convert to fraction form
    70,032.33/96,640.70 = 39,813.39/x
  3. Step 3: Cross multiply
    70,032.33x = 96,640.70 × 39,813.39
  4. Step 4: Simplify right side
    70,032.33x = 3,847,593,679.91
  5. Step 5: Solve for x
    x = 3,847,593,679.91/70,032.33
  6. Step 6: Final answer
    x = 54,940.25

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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.