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Finding the Fourth Proportional to 20,001.52, 27,602.16 and 11,049.28

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Solution

The fourth proportional to 20,001.52, 27,602.16 and 11,049.28 is: 15,248.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.52 : 27,602.16 = 11,049.28 : x
  2. Step 2: Convert to fraction form
    20,001.52/27,602.16 = 11,049.28/x
  3. Step 3: Cross multiply
    20,001.52x = 27,602.16 × 11,049.28
  4. Step 4: Simplify right side
    20,001.52x = 304,983,994.44
  5. Step 5: Solve for x
    x = 304,983,994.44/20,001.52
  6. Step 6: Final answer
    x = 15,248.04

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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.