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Finding the Fourth Proportional to 12,299.20, 16,973.09 and 6,710.20

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Solution

The fourth proportional to 12,299.20, 16,973.09 and 6,710.20 is: 9,260.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.20 : 16,973.09 = 6,710.20 : x
  2. Step 2: Convert to fraction form
    12,299.20/16,973.09 = 6,710.20/x
  3. Step 3: Cross multiply
    12,299.20x = 16,973.09 × 6,710.20
  4. Step 4: Simplify right side
    12,299.20x = 113,892,710.10
  5. Step 5: Solve for x
    x = 113,892,710.10/12,299.20
  6. Step 6: Final answer
    x = 9,260.18

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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.