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Finding the Fourth Proportional to 12,299.40, 16,972.92 and 6,710.40

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Solution

The fourth proportional to 12,299.40, 16,972.92 and 6,710.40 is: 9,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.40 : 16,972.92 = 6,710.40 : x
  2. Step 2: Convert to fraction form
    12,299.40/16,972.92 = 6,710.40/x
  3. Step 3: Cross multiply
    12,299.40x = 16,972.92 × 6,710.40
  4. Step 4: Simplify right side
    12,299.40x = 113,895,082.37
  5. Step 5: Solve for x
    x = 113,895,082.37/12,299.40
  6. Step 6: Final answer
    x = 9,260.21

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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.