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Finding the Fourth Proportional to 14,006.53, 20,961.45 and 8,667.52

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Solution

The fourth proportional to 14,006.53, 20,961.45 and 8,667.52 is: 12,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.53 : 20,961.45 = 8,667.52 : x
  2. Step 2: Convert to fraction form
    14,006.53/20,961.45 = 8,667.52/x
  3. Step 3: Cross multiply
    14,006.53x = 20,961.45 × 8,667.52
  4. Step 4: Simplify right side
    14,006.53x = 181,683,682.30
  5. Step 5: Solve for x
    x = 181,683,682.30/14,006.53
  6. Step 6: Final answer
    x = 12,971.36

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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.