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Finding the Fourth Proportional to 22,687.78, 34,025.52 and 14,355.28

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Solution

The fourth proportional to 22,687.78, 34,025.52 and 14,355.28 is: 21,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.78 : 34,025.52 = 14,355.28 : x
  2. Step 2: Convert to fraction form
    22,687.78/34,025.52 = 14,355.28/x
  3. Step 3: Cross multiply
    22,687.78x = 34,025.52 × 14,355.28
  4. Step 4: Simplify right side
    22,687.78x = 488,445,866.75
  5. Step 5: Solve for x
    x = 488,445,866.75/22,687.78
  6. Step 6: Final answer
    x = 21,529.03

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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.