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Finding the Fourth Proportional to 22,940.64, 34,410.24 and 12,617.28

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Solution

The fourth proportional to 22,940.64, 34,410.24 and 12,617.28 is: 18,925.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,940.64 : 34,410.24 = 12,617.28 : x
  2. Step 2: Convert to fraction form
    22,940.64/34,410.24 = 12,617.28/x
  3. Step 3: Cross multiply
    22,940.64x = 34,410.24 × 12,617.28
  4. Step 4: Simplify right side
    22,940.64x = 434,163,632.95
  5. Step 5: Solve for x
    x = 434,163,632.95/22,940.64
  6. Step 6: Final answer
    x = 18,925.52

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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.