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Finding the Fourth Proportional to 14,039.97, 21,041.32 and 7,451.97

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Solution

The fourth proportional to 14,039.97, 21,041.32 and 7,451.97 is: 11,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,039.97 : 21,041.32 = 7,451.97 : x
  2. Step 2: Convert to fraction form
    14,039.97/21,041.32 = 7,451.97/x
  3. Step 3: Cross multiply
    14,039.97x = 21,041.32 × 7,451.97
  4. Step 4: Simplify right side
    14,039.97x = 156,799,285.40
  5. Step 5: Solve for x
    x = 156,799,285.40/14,039.97
  6. Step 6: Final answer
    x = 11,168.06

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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.