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Finding the Fourth Proportional to 14,061.90, 21,093.10 and 4,201.30

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Solution

The fourth proportional to 14,061.90, 21,093.10 and 4,201.30 is: 6,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,061.90 : 21,093.10 = 4,201.30 : x
  2. Step 2: Convert to fraction form
    14,061.90/21,093.10 = 4,201.30/x
  3. Step 3: Cross multiply
    14,061.90x = 21,093.10 × 4,201.30
  4. Step 4: Simplify right side
    14,061.90x = 88,618,441.03
  5. Step 5: Solve for x
    x = 88,618,441.03/14,061.90
  6. Step 6: Final answer
    x = 6,302.02

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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.