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Finding the Fourth Proportional to 11,170.73, 15,393.35 and 7,975.01

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Solution

The fourth proportional to 11,170.73, 15,393.35 and 7,975.01 is: 10,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.73 : 15,393.35 = 7,975.01 : x
  2. Step 2: Convert to fraction form
    11,170.73/15,393.35 = 7,975.01/x
  3. Step 3: Cross multiply
    11,170.73x = 15,393.35 × 7,975.01
  4. Step 4: Simplify right side
    11,170.73x = 122,762,120.18
  5. Step 5: Solve for x
    x = 122,762,120.18/11,170.73
  6. Step 6: Final answer
    x = 10,989.62

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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.