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Finding the Fourth Proportional to 53,866.95, 80,800.42 and 16,930.95

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Solution

The fourth proportional to 53,866.95, 80,800.42 and 16,930.95 is: 25,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,866.95 : 80,800.42 = 16,930.95 : x
  2. Step 2: Convert to fraction form
    53,866.95/80,800.42 = 16,930.95/x
  3. Step 3: Cross multiply
    53,866.95x = 80,800.42 × 16,930.95
  4. Step 4: Simplify right side
    53,866.95x = 1,368,027,871.00
  5. Step 5: Solve for x
    x = 1,368,027,871.00/53,866.95
  6. Step 6: Final answer
    x = 25,396.42

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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.