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Finding the Fourth Proportional to 17,280.54, 25,917.98 and 6,185.16

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Solution

The fourth proportional to 17,280.54, 25,917.98 and 6,185.16 is: 9,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,280.54 : 25,917.98 = 6,185.16 : x
  2. Step 2: Convert to fraction form
    17,280.54/25,917.98 = 6,185.16/x
  3. Step 3: Cross multiply
    17,280.54x = 25,917.98 × 6,185.16
  4. Step 4: Simplify right side
    17,280.54x = 160,306,822.25
  5. Step 5: Solve for x
    x = 160,306,822.25/17,280.54
  6. Step 6: Final answer
    x = 9,276.73

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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.