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Finding the Fourth Proportional to 8,674.56, 13,010.63 and 2,831.22

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Solution

The fourth proportional to 8,674.56, 13,010.63 and 2,831.22 is: 4,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.56 : 13,010.63 = 2,831.22 : x
  2. Step 2: Convert to fraction form
    8,674.56/13,010.63 = 2,831.22/x
  3. Step 3: Cross multiply
    8,674.56x = 13,010.63 × 2,831.22
  4. Step 4: Simplify right side
    8,674.56x = 36,835,941.71
  5. Step 5: Solve for x
    x = 36,835,941.71/8,674.56
  6. Step 6: Final answer
    x = 4,246.43

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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.