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Finding the Fourth Proportional to 6,690.81, 10,026.62 and 5,867.13

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Solution

The fourth proportional to 6,690.81, 10,026.62 and 5,867.13 is: 8,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.81 : 10,026.62 = 5,867.13 : x
  2. Step 2: Convert to fraction form
    6,690.81/10,026.62 = 5,867.13/x
  3. Step 3: Cross multiply
    6,690.81x = 10,026.62 × 5,867.13
  4. Step 4: Simplify right side
    6,690.81x = 58,827,453.66
  5. Step 5: Solve for x
    x = 58,827,453.66/6,690.81
  6. Step 6: Final answer
    x = 8,792.28

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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.