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Finding the Fourth Proportional to 11,972.03, 16,521.51 and 6,666.93

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Solution

The fourth proportional to 11,972.03, 16,521.51 and 6,666.93 is: 9,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.03 : 16,521.51 = 6,666.93 : x
  2. Step 2: Convert to fraction form
    11,972.03/16,521.51 = 6,666.93/x
  3. Step 3: Cross multiply
    11,972.03x = 16,521.51 × 6,666.93
  4. Step 4: Simplify right side
    11,972.03x = 110,147,750.66
  5. Step 5: Solve for x
    x = 110,147,750.66/11,972.03
  6. Step 6: Final answer
    x = 9,200.43

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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.