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Finding the Fourth Proportional to 15,076.76, 22,611.36 and 7,174.40

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Solution

The fourth proportional to 15,076.76, 22,611.36 and 7,174.40 is: 10,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.76 : 22,611.36 = 7,174.40 : x
  2. Step 2: Convert to fraction form
    15,076.76/22,611.36 = 7,174.40/x
  3. Step 3: Cross multiply
    15,076.76x = 22,611.36 × 7,174.40
  4. Step 4: Simplify right side
    15,076.76x = 162,222,941.18
  5. Step 5: Solve for x
    x = 162,222,941.18/15,076.76
  6. Step 6: Final answer
    x = 10,759.80

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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.