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Finding the Fourth Proportional to 21,608.01, 29,824.61 and 14,073.12

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Solution

The fourth proportional to 21,608.01, 29,824.61 and 14,073.12 is: 19,424.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.01 : 29,824.61 = 14,073.12 : x
  2. Step 2: Convert to fraction form
    21,608.01/29,824.61 = 14,073.12/x
  3. Step 3: Cross multiply
    21,608.01x = 29,824.61 × 14,073.12
  4. Step 4: Simplify right side
    21,608.01x = 419,725,245.12
  5. Step 5: Solve for x
    x = 419,725,245.12/21,608.01
  6. Step 6: Final answer
    x = 19,424.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.