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Finding the Fourth Proportional to 71,093.92, 98,109.28 and 39,262.68

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Solution

The fourth proportional to 71,093.92, 98,109.28 and 39,262.68 is: 54,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,093.92 : 98,109.28 = 39,262.68 : x
  2. Step 2: Convert to fraction form
    71,093.92/98,109.28 = 39,262.68/x
  3. Step 3: Cross multiply
    71,093.92x = 98,109.28 × 39,262.68
  4. Step 4: Simplify right side
    71,093.92x = 3,852,033,265.67
  5. Step 5: Solve for x
    x = 3,852,033,265.67/71,093.92
  6. Step 6: Final answer
    x = 54,182.32

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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.