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Finding the Fourth Proportional to 8,683.04, 11,982.52 and 5,147.93

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Solution

The fourth proportional to 8,683.04, 11,982.52 and 5,147.93 is: 7,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.04 : 11,982.52 = 5,147.93 : x
  2. Step 2: Convert to fraction form
    8,683.04/11,982.52 = 5,147.93/x
  3. Step 3: Cross multiply
    8,683.04x = 11,982.52 × 5,147.93
  4. Step 4: Simplify right side
    8,683.04x = 61,685,174.18
  5. Step 5: Solve for x
    x = 61,685,174.18/8,683.04
  6. Step 6: Final answer
    x = 7,104.10

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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.