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Finding the Fourth Proportional to 18,001.89, 27,005.04 and 6,156.84

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Solution

The fourth proportional to 18,001.89, 27,005.04 and 6,156.84 is: 9,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.89 : 27,005.04 = 6,156.84 : x
  2. Step 2: Convert to fraction form
    18,001.89/27,005.04 = 6,156.84/x
  3. Step 3: Cross multiply
    18,001.89x = 27,005.04 × 6,156.84
  4. Step 4: Simplify right side
    18,001.89x = 166,265,710.47
  5. Step 5: Solve for x
    x = 166,265,710.47/18,001.89
  6. Step 6: Final answer
    x = 9,236.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.