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Finding the Fourth Proportional to 13,674.80, 18,873.84 and 8,010.80

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Solution

The fourth proportional to 13,674.80, 18,873.84 and 8,010.80 is: 11,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.80 : 18,873.84 = 8,010.80 : x
  2. Step 2: Convert to fraction form
    13,674.80/18,873.84 = 8,010.80/x
  3. Step 3: Cross multiply
    13,674.80x = 18,873.84 × 8,010.80
  4. Step 4: Simplify right side
    13,674.80x = 151,194,557.47
  5. Step 5: Solve for x
    x = 151,194,557.47/13,674.80
  6. Step 6: Final answer
    x = 11,056.44

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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.