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Finding the Fourth Proportional to 22,745.80, 34,118.78 and 7,954.64

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Solution

The fourth proportional to 22,745.80, 34,118.78 and 7,954.64 is: 11,931.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.80 : 34,118.78 = 7,954.64 : x
  2. Step 2: Convert to fraction form
    22,745.80/34,118.78 = 7,954.64/x
  3. Step 3: Cross multiply
    22,745.80x = 34,118.78 × 7,954.64
  4. Step 4: Simplify right side
    22,745.80x = 271,402,612.14
  5. Step 5: Solve for x
    x = 271,402,612.14/22,745.80
  6. Step 6: Final answer
    x = 11,931.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.