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Finding the Fourth Proportional to 5,831.80, 8,181.80 and 5,831.80

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Solution

The fourth proportional to 5,831.80, 8,181.80 and 5,831.80 is: 8,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,831.80 : 8,181.80 = 5,831.80 : x
  2. Step 2: Convert to fraction form
    5,831.80/8,181.80 = 5,831.80/x
  3. Step 3: Cross multiply
    5,831.80x = 8,181.80 × 5,831.80
  4. Step 4: Simplify right side
    5,831.80x = 47,714,621.24
  5. Step 5: Solve for x
    x = 47,714,621.24/5,831.80
  6. Step 6: Final answer
    x = 8,181.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.