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Finding the Fourth Proportional to 21,059.01, 29,061.09 and 11,627.33

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Solution

The fourth proportional to 21,059.01, 29,061.09 and 11,627.33 is: 16,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.01 : 29,061.09 = 11,627.33 : x
  2. Step 2: Convert to fraction form
    21,059.01/29,061.09 = 11,627.33/x
  3. Step 3: Cross multiply
    21,059.01x = 29,061.09 × 11,627.33
  4. Step 4: Simplify right side
    21,059.01x = 337,902,825.45
  5. Step 5: Solve for x
    x = 337,902,825.45/21,059.01
  6. Step 6: Final answer
    x = 16,045.52

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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.