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Finding the Fourth Proportional to 18,063.21, 27,029.16 and 14,913.93

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Solution

The fourth proportional to 18,063.21, 27,029.16 and 14,913.93 is: 22,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,063.21 : 27,029.16 = 14,913.93 : x
  2. Step 2: Convert to fraction form
    18,063.21/27,029.16 = 14,913.93/x
  3. Step 3: Cross multiply
    18,063.21x = 27,029.16 × 14,913.93
  4. Step 4: Simplify right side
    18,063.21x = 403,111,000.20
  5. Step 5: Solve for x
    x = 403,111,000.20/18,063.21
  6. Step 6: Final answer
    x = 22,316.69

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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.