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Finding the Fourth Proportional to 8,810.36, 12,157.96 and 4,831.48

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Solution

The fourth proportional to 8,810.36, 12,157.96 and 4,831.48 is: 6,667.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.36 : 12,157.96 = 4,831.48 : x
  2. Step 2: Convert to fraction form
    8,810.36/12,157.96 = 4,831.48/x
  3. Step 3: Cross multiply
    8,810.36x = 12,157.96 × 4,831.48
  4. Step 4: Simplify right side
    8,810.36x = 58,740,940.58
  5. Step 5: Solve for x
    x = 58,740,940.58/8,810.36
  6. Step 6: Final answer
    x = 6,667.26

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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.