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Finding the Fourth Proportional to 50,491.79, 69,679.16 and 27,831.67

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Solution

The fourth proportional to 50,491.79, 69,679.16 and 27,831.67 is: 38,407.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,491.79 : 69,679.16 = 27,831.67 : x
  2. Step 2: Convert to fraction form
    50,491.79/69,679.16 = 27,831.67/x
  3. Step 3: Cross multiply
    50,491.79x = 69,679.16 × 27,831.67
  4. Step 4: Simplify right side
    50,491.79x = 1,939,287,387.00
  5. Step 5: Solve for x
    x = 1,939,287,387.00/50,491.79
  6. Step 6: Final answer
    x = 38,407.97

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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.