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Finding the Fourth Proportional to 14,073.84, 21,091.02 and 10,939.50

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Solution

The fourth proportional to 14,073.84, 21,091.02 and 10,939.50 is: 16,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,073.84 : 21,091.02 = 10,939.50 : x
  2. Step 2: Convert to fraction form
    14,073.84/21,091.02 = 10,939.50/x
  3. Step 3: Cross multiply
    14,073.84x = 21,091.02 × 10,939.50
  4. Step 4: Simplify right side
    14,073.84x = 230,725,213.29
  5. Step 5: Solve for x
    x = 230,725,213.29/14,073.84
  6. Step 6: Final answer
    x = 16,393.91

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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.