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Finding the Fourth Proportional to 12,080.75, 16,671.48 and 7,048.45

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Solution

The fourth proportional to 12,080.75, 16,671.48 and 7,048.45 is: 9,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.75 : 16,671.48 = 7,048.45 : x
  2. Step 2: Convert to fraction form
    12,080.75/16,671.48 = 7,048.45/x
  3. Step 3: Cross multiply
    12,080.75x = 16,671.48 × 7,048.45
  4. Step 4: Simplify right side
    12,080.75x = 117,508,009.85
  5. Step 5: Solve for x
    x = 117,508,009.85/12,080.75
  6. Step 6: Final answer
    x = 9,726.88

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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.