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Finding the Fourth Proportional to 12,299.28, 16,972.92 and 6,710.28

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Solution

The fourth proportional to 12,299.28, 16,972.92 and 6,710.28 is: 9,260.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.28 : 16,972.92 = 6,710.28 : x
  2. Step 2: Convert to fraction form
    12,299.28/16,972.92 = 6,710.28/x
  3. Step 3: Cross multiply
    12,299.28x = 16,972.92 × 6,710.28
  4. Step 4: Simplify right side
    12,299.28x = 113,893,045.62
  5. Step 5: Solve for x
    x = 113,893,045.62/12,299.28
  6. Step 6: Final answer
    x = 9,260.14

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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.