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Finding the Fourth Proportional to 68,096.39, 93,971.30 and 39,412.08

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Solution

The fourth proportional to 68,096.39, 93,971.30 and 39,412.08 is: 54,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,096.39 : 93,971.30 = 39,412.08 : x
  2. Step 2: Convert to fraction form
    68,096.39/93,971.30 = 39,412.08/x
  3. Step 3: Cross multiply
    68,096.39x = 93,971.30 × 39,412.08
  4. Step 4: Simplify right side
    68,096.39x = 3,703,604,196.24
  5. Step 5: Solve for x
    x = 3,703,604,196.24/68,096.39
  6. Step 6: Final answer
    x = 54,387.68

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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.