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Finding the Fourth Proportional to 48,831.28, 73,246.74 and 20,400.28

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Solution

The fourth proportional to 48,831.28, 73,246.74 and 20,400.28 is: 30,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,831.28 : 73,246.74 = 20,400.28 : x
  2. Step 2: Convert to fraction form
    48,831.28/73,246.74 = 20,400.28/x
  3. Step 3: Cross multiply
    48,831.28x = 73,246.74 × 20,400.28
  4. Step 4: Simplify right side
    48,831.28x = 1,494,254,005.09
  5. Step 5: Solve for x
    x = 1,494,254,005.09/48,831.28
  6. Step 6: Final answer
    x = 30,600.34

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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.