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Finding the Fourth Proportional to 9,122.70, 13,671.09 and 3,570.06

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Solution

The fourth proportional to 9,122.70, 13,671.09 and 3,570.06 is: 5,350.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.70 : 13,671.09 = 3,570.06 : x
  2. Step 2: Convert to fraction form
    9,122.70/13,671.09 = 3,570.06/x
  3. Step 3: Cross multiply
    9,122.70x = 13,671.09 × 3,570.06
  4. Step 4: Simplify right side
    9,122.70x = 48,806,611.57
  5. Step 5: Solve for x
    x = 48,806,611.57/9,122.70
  6. Step 6: Final answer
    x = 5,350.02

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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.