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Finding the Fourth Proportional to 25,322.90, 34,945.57 and 14,144.90

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Solution

The fourth proportional to 25,322.90, 34,945.57 and 14,144.90 is: 19,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,322.90 : 34,945.57 = 14,144.90 : x
  2. Step 2: Convert to fraction form
    25,322.90/34,945.57 = 14,144.90/x
  3. Step 3: Cross multiply
    25,322.90x = 34,945.57 × 14,144.90
  4. Step 4: Simplify right side
    25,322.90x = 494,301,593.09
  5. Step 5: Solve for x
    x = 494,301,593.09/25,322.90
  6. Step 6: Final answer
    x = 19,519.94

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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.