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Finding the Fourth Proportional to 12,168.76, 16,792.92 and 6,579.80

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Solution

The fourth proportional to 12,168.76, 16,792.92 and 6,579.80 is: 9,080.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.76 : 16,792.92 = 6,579.80 : x
  2. Step 2: Convert to fraction form
    12,168.76/16,792.92 = 6,579.80/x
  3. Step 3: Cross multiply
    12,168.76x = 16,792.92 × 6,579.80
  4. Step 4: Simplify right side
    12,168.76x = 110,494,055.02
  5. Step 5: Solve for x
    x = 110,494,055.02/12,168.76
  6. Step 6: Final answer
    x = 9,080.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.