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Finding the Fourth Proportional to 49,993.76, 69,006.76 and 28,787.16

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Solution

The fourth proportional to 49,993.76, 69,006.76 and 28,787.16 is: 39,735.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,993.76 : 69,006.76 = 28,787.16 : x
  2. Step 2: Convert to fraction form
    49,993.76/69,006.76 = 28,787.16/x
  3. Step 3: Cross multiply
    49,993.76x = 69,006.76 × 28,787.16
  4. Step 4: Simplify right side
    49,993.76x = 1,986,508,641.20
  5. Step 5: Solve for x
    x = 1,986,508,641.20/49,993.76
  6. Step 6: Final answer
    x = 39,735.13

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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.