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Finding the Fourth Proportional to 15,892.01, 21,939.14 and 11,197.25

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Solution

The fourth proportional to 15,892.01, 21,939.14 and 11,197.25 is: 15,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,892.01 : 21,939.14 = 11,197.25 : x
  2. Step 2: Convert to fraction form
    15,892.01/21,939.14 = 11,197.25/x
  3. Step 3: Cross multiply
    15,892.01x = 21,939.14 × 11,197.25
  4. Step 4: Simplify right side
    15,892.01x = 245,657,993.94
  5. Step 5: Solve for x
    x = 245,657,993.94/15,892.01
  6. Step 6: Final answer
    x = 15,457.96

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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.