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Finding the Fourth Proportional to 12,300.17, 16,974.02 and 6,994.86

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Solution

The fourth proportional to 12,300.17, 16,974.02 and 6,994.86 is: 9,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300.17 : 16,974.02 = 6,994.86 : x
  2. Step 2: Convert to fraction form
    12,300.17/16,974.02 = 6,994.86/x
  3. Step 3: Cross multiply
    12,300.17x = 16,974.02 × 6,994.86
  4. Step 4: Simplify right side
    12,300.17x = 118,730,858.56
  5. Step 5: Solve for x
    x = 118,730,858.56/12,300.17
  6. Step 6: Final answer
    x = 9,652.79

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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.