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Finding the Fourth Proportional to 8,762.92, 13,136.96 and 4,080.48

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Solution

The fourth proportional to 8,762.92, 13,136.96 and 4,080.48 is: 6,117.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.92 : 13,136.96 = 4,080.48 : x
  2. Step 2: Convert to fraction form
    8,762.92/13,136.96 = 4,080.48/x
  3. Step 3: Cross multiply
    8,762.92x = 13,136.96 × 4,080.48
  4. Step 4: Simplify right side
    8,762.92x = 53,605,102.54
  5. Step 5: Solve for x
    x = 53,605,102.54/8,762.92
  6. Step 6: Final answer
    x = 6,117.26

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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.