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Finding the Fourth Proportional to 53,205.78, 79,797.46 and 15,766.18

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Solution

The fourth proportional to 53,205.78, 79,797.46 and 15,766.18 is: 23,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,205.78 : 79,797.46 = 15,766.18 : x
  2. Step 2: Convert to fraction form
    53,205.78/79,797.46 = 15,766.18/x
  3. Step 3: Cross multiply
    53,205.78x = 79,797.46 × 15,766.18
  4. Step 4: Simplify right side
    53,205.78x = 1,258,101,117.90
  5. Step 5: Solve for x
    x = 1,258,101,117.90/53,205.78
  6. Step 6: Final answer
    x = 23,645.95

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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.