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Finding the Fourth Proportional to 6,990.26, 9,641.38 and 5,073.34

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Solution

The fourth proportional to 6,990.26, 9,641.38 and 5,073.34 is: 6,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.26 : 9,641.38 = 5,073.34 : x
  2. Step 2: Convert to fraction form
    6,990.26/9,641.38 = 5,073.34/x
  3. Step 3: Cross multiply
    6,990.26x = 9,641.38 × 5,073.34
  4. Step 4: Simplify right side
    6,990.26x = 48,913,998.81
  5. Step 5: Solve for x
    x = 48,913,998.81/6,990.26
  6. Step 6: Final answer
    x = 6,997.45

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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.