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Finding the Fourth Proportional to 12,359.12, 17,052.99 and 7,053.80

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Solution

The fourth proportional to 12,359.12, 17,052.99 and 7,053.80 is: 9,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.12 : 17,052.99 = 7,053.80 : x
  2. Step 2: Convert to fraction form
    12,359.12/17,052.99 = 7,053.80/x
  3. Step 3: Cross multiply
    12,359.12x = 17,052.99 × 7,053.80
  4. Step 4: Simplify right side
    12,359.12x = 120,288,380.86
  5. Step 5: Solve for x
    x = 120,288,380.86/12,359.12
  6. Step 6: Final answer
    x = 9,732.76

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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.