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Finding the Fourth Proportional to 15,405.28, 23,094 and 8,001.12

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Solution

The fourth proportional to 15,405.28, 23,094 and 8,001.12 is: 11,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.28 : 23,094 = 8,001.12 : x
  2. Step 2: Convert to fraction form
    15,405.28/23,094 = 8,001.12/x
  3. Step 3: Cross multiply
    15,405.28x = 23,094 × 8,001.12
  4. Step 4: Simplify right side
    15,405.28x = 184,777,865.28
  5. Step 5: Solve for x
    x = 184,777,865.28/15,405.28
  6. Step 6: Final answer
    x = 11,994.45

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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.