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Finding the Fourth Proportional to 14,608.92, 21,932.82 and 7,688.28

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Solution

The fourth proportional to 14,608.92, 21,932.82 and 7,688.28 is: 11,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.92 : 21,932.82 = 7,688.28 : x
  2. Step 2: Convert to fraction form
    14,608.92/21,932.82 = 7,688.28/x
  3. Step 3: Cross multiply
    14,608.92x = 21,932.82 × 7,688.28
  4. Step 4: Simplify right side
    14,608.92x = 168,625,661.35
  5. Step 5: Solve for x
    x = 168,625,661.35/14,608.92
  6. Step 6: Final answer
    x = 11,542.65

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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.