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Finding the Fourth Proportional to 18,094.88, 27,144.90 and 5,615.98

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Solution

The fourth proportional to 18,094.88, 27,144.90 and 5,615.98 is: 8,424.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,094.88 : 27,144.90 = 5,615.98 : x
  2. Step 2: Convert to fraction form
    18,094.88/27,144.90 = 5,615.98/x
  3. Step 3: Cross multiply
    18,094.88x = 27,144.90 × 5,615.98
  4. Step 4: Simplify right side
    18,094.88x = 152,445,215.50
  5. Step 5: Solve for x
    x = 152,445,215.50/18,094.88
  6. Step 6: Final answer
    x = 8,424.77

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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.