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Finding the Fourth Proportional to 25,294.47, 34,906.47 and 13,964.07

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Solution

The fourth proportional to 25,294.47, 34,906.47 and 13,964.07 is: 19,270.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,294.47 : 34,906.47 = 13,964.07 : x
  2. Step 2: Convert to fraction form
    25,294.47/34,906.47 = 13,964.07/x
  3. Step 3: Cross multiply
    25,294.47x = 34,906.47 × 13,964.07
  4. Step 4: Simplify right side
    25,294.47x = 487,436,390.53
  5. Step 5: Solve for x
    x = 487,436,390.53/25,294.47
  6. Step 6: Final answer
    x = 19,270.47

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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.