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Finding the Fourth Proportional to 61,083.92, 91,628.64 and 16,709.68

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Solution

The fourth proportional to 61,083.92, 91,628.64 and 16,709.68 is: 25,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,083.92 : 91,628.64 = 16,709.68 : x
  2. Step 2: Convert to fraction form
    61,083.92/91,628.64 = 16,709.68/x
  3. Step 3: Cross multiply
    61,083.92x = 91,628.64 × 16,709.68
  4. Step 4: Simplify right side
    61,083.92x = 1,531,085,253.24
  5. Step 5: Solve for x
    x = 1,531,085,253.24/61,083.92
  6. Step 6: Final answer
    x = 25,065.28

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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.