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Finding the Fourth Proportional to 11,674.80, 17,512.20 and 6,740.10

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Solution

The fourth proportional to 11,674.80, 17,512.20 and 6,740.10 is: 10,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,674.80 : 17,512.20 = 6,740.10 : x
  2. Step 2: Convert to fraction form
    11,674.80/17,512.20 = 6,740.10/x
  3. Step 3: Cross multiply
    11,674.80x = 17,512.20 × 6,740.10
  4. Step 4: Simplify right side
    11,674.80x = 118,033,979.22
  5. Step 5: Solve for x
    x = 118,033,979.22/11,674.80
  6. Step 6: Final answer
    x = 10,110.15

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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.