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Finding the Fourth Proportional to 20,594.94, 30,894.84 and 15,433.62

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Solution

The fourth proportional to 20,594.94, 30,894.84 and 15,433.62 is: 23,152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.94 : 30,894.84 = 15,433.62 : x
  2. Step 2: Convert to fraction form
    20,594.94/30,894.84 = 15,433.62/x
  3. Step 3: Cross multiply
    20,594.94x = 30,894.84 × 15,433.62
  4. Step 4: Simplify right side
    20,594.94x = 476,819,220.52
  5. Step 5: Solve for x
    x = 476,819,220.52/20,594.94
  6. Step 6: Final answer
    x = 23,152.25

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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.