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Finding the Fourth Proportional to 12,009.66, 16,575.21 and 6,973.89

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Solution

The fourth proportional to 12,009.66, 16,575.21 and 6,973.89 is: 9,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009.66 : 16,575.21 = 6,973.89 : x
  2. Step 2: Convert to fraction form
    12,009.66/16,575.21 = 6,973.89/x
  3. Step 3: Cross multiply
    12,009.66x = 16,575.21 × 6,973.89
  4. Step 4: Simplify right side
    12,009.66x = 115,593,691.27
  5. Step 5: Solve for x
    x = 115,593,691.27/12,009.66
  6. Step 6: Final answer
    x = 9,625.06

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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.