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Finding the Fourth Proportional to 30,787.03, 46,166.19 and 15,991.97

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Solution

The fourth proportional to 30,787.03, 46,166.19 and 15,991.97 is: 23,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,787.03 : 46,166.19 = 15,991.97 : x
  2. Step 2: Convert to fraction form
    30,787.03/46,166.19 = 15,991.97/x
  3. Step 3: Cross multiply
    30,787.03x = 46,166.19 × 15,991.97
  4. Step 4: Simplify right side
    30,787.03x = 738,288,440.91
  5. Step 5: Solve for x
    x = 738,288,440.91/30,787.03
  6. Step 6: Final answer
    x = 23,980.50

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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.