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Finding the Fourth Proportional to 19,204.68, 28,787.24 and 7,355.22

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Solution

The fourth proportional to 19,204.68, 28,787.24 and 7,355.22 is: 11,025.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,204.68 : 28,787.24 = 7,355.22 : x
  2. Step 2: Convert to fraction form
    19,204.68/28,787.24 = 7,355.22/x
  3. Step 3: Cross multiply
    19,204.68x = 28,787.24 × 7,355.22
  4. Step 4: Simplify right side
    19,204.68x = 211,736,446.62
  5. Step 5: Solve for x
    x = 211,736,446.62/19,204.68
  6. Step 6: Final answer
    x = 11,025.25

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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.