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Finding the Fourth Proportional to 34,522.73, 47,643.09 and 19,420.15

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Solution

The fourth proportional to 34,522.73, 47,643.09 and 19,420.15 is: 26,800.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,522.73 : 47,643.09 = 19,420.15 : x
  2. Step 2: Convert to fraction form
    34,522.73/47,643.09 = 19,420.15/x
  3. Step 3: Cross multiply
    34,522.73x = 47,643.09 × 19,420.15
  4. Step 4: Simplify right side
    34,522.73x = 925,235,716.05
  5. Step 5: Solve for x
    x = 925,235,716.05/34,522.73
  6. Step 6: Final answer
    x = 26,800.77

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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.