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Finding the Fourth Proportional to 16,812.54, 25,220.64 and 6,287.61

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Solution

The fourth proportional to 16,812.54, 25,220.64 and 6,287.61 is: 9,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.54 : 25,220.64 = 6,287.61 : x
  2. Step 2: Convert to fraction form
    16,812.54/25,220.64 = 6,287.61/x
  3. Step 3: Cross multiply
    16,812.54x = 25,220.64 × 6,287.61
  4. Step 4: Simplify right side
    16,812.54x = 158,577,548.27
  5. Step 5: Solve for x
    x = 158,577,548.27/16,812.54
  6. Step 6: Final answer
    x = 9,432.10

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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.