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Finding the Fourth Proportional to 70,195.36, 96,875.84 and 39,974.08

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Solution

The fourth proportional to 70,195.36, 96,875.84 and 39,974.08 is: 55,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,195.36 : 96,875.84 = 39,974.08 : x
  2. Step 2: Convert to fraction form
    70,195.36/96,875.84 = 39,974.08/x
  3. Step 3: Cross multiply
    70,195.36x = 96,875.84 × 39,974.08
  4. Step 4: Simplify right side
    70,195.36x = 3,872,522,578.23
  5. Step 5: Solve for x
    x = 3,872,522,578.23/70,195.36
  6. Step 6: Final answer
    x = 55,167.79

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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.