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Finding the Fourth Proportional to 30,280.50, 41,787.09 and 17,032.50

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Solution

The fourth proportional to 30,280.50, 41,787.09 and 17,032.50 is: 23,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.50 : 41,787.09 = 17,032.50 : x
  2. Step 2: Convert to fraction form
    30,280.50/41,787.09 = 17,032.50/x
  3. Step 3: Cross multiply
    30,280.50x = 41,787.09 × 17,032.50
  4. Step 4: Simplify right side
    30,280.50x = 711,738,610.43
  5. Step 5: Solve for x
    x = 711,738,610.43/30,280.50
  6. Step 6: Final answer
    x = 23,504.85

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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.