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Finding the Fourth Proportional to 5,991.81, 9,020.07 and 5,389.02

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Solution

The fourth proportional to 5,991.81, 9,020.07 and 5,389.02 is: 8,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991.81 : 9,020.07 = 5,389.02 : x
  2. Step 2: Convert to fraction form
    5,991.81/9,020.07 = 5,389.02/x
  3. Step 3: Cross multiply
    5,991.81x = 9,020.07 × 5,389.02
  4. Step 4: Simplify right side
    5,991.81x = 48,609,292.53
  5. Step 5: Solve for x
    x = 48,609,292.53/5,991.81
  6. Step 6: Final answer
    x = 8,112.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.