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Finding the Fourth Proportional to 6,403.11, 8,826.62 and 5,003.43

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Solution

The fourth proportional to 6,403.11, 8,826.62 and 5,003.43 is: 6,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.11 : 8,826.62 = 5,003.43 : x
  2. Step 2: Convert to fraction form
    6,403.11/8,826.62 = 5,003.43/x
  3. Step 3: Cross multiply
    6,403.11x = 8,826.62 × 5,003.43
  4. Step 4: Simplify right side
    6,403.11x = 44,163,350.29
  5. Step 5: Solve for x
    x = 44,163,350.29/6,403.11
  6. Step 6: Final answer
    x = 6,897.17

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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.