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Finding the Fourth Proportional to 14,502.70, 21,741.49 and 8,647.01

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Solution

The fourth proportional to 14,502.70, 21,741.49 and 8,647.01 is: 12,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.70 : 21,741.49 = 8,647.01 : x
  2. Step 2: Convert to fraction form
    14,502.70/21,741.49 = 8,647.01/x
  3. Step 3: Cross multiply
    14,502.70x = 21,741.49 × 8,647.01
  4. Step 4: Simplify right side
    14,502.70x = 187,998,881.44
  5. Step 5: Solve for x
    x = 187,998,881.44/14,502.70
  6. Step 6: Final answer
    x = 12,963.03

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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.