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Finding the Fourth Proportional to 7,886.67, 10,883.47 and 4,350.21

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Solution

The fourth proportional to 7,886.67, 10,883.47 and 4,350.21 is: 6,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.67 : 10,883.47 = 4,350.21 : x
  2. Step 2: Convert to fraction form
    7,886.67/10,883.47 = 4,350.21/x
  3. Step 3: Cross multiply
    7,886.67x = 10,883.47 × 4,350.21
  4. Step 4: Simplify right side
    7,886.67x = 47,345,380.03
  5. Step 5: Solve for x
    x = 47,345,380.03/7,886.67
  6. Step 6: Final answer
    x = 6,003.22

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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.