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Finding the Fourth Proportional to 60,009.84, 82,722.60 and 39,831.12

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Solution

The fourth proportional to 60,009.84, 82,722.60 and 39,831.12 is: 54,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,009.84 : 82,722.60 = 39,831.12 : x
  2. Step 2: Convert to fraction form
    60,009.84/82,722.60 = 39,831.12/x
  3. Step 3: Cross multiply
    60,009.84x = 82,722.60 × 39,831.12
  4. Step 4: Simplify right side
    60,009.84x = 3,294,933,807.31
  5. Step 5: Solve for x
    x = 3,294,933,807.31/60,009.84
  6. Step 6: Final answer
    x = 54,906.56

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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.