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Finding the Fourth Proportional to 61,203.12, 91,831.02 and 33,143.22

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Solution

The fourth proportional to 61,203.12, 91,831.02 and 33,143.22 is: 49,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,203.12 : 91,831.02 = 33,143.22 : x
  2. Step 2: Convert to fraction form
    61,203.12/91,831.02 = 33,143.22/x
  3. Step 3: Cross multiply
    61,203.12x = 91,831.02 × 33,143.22
  4. Step 4: Simplify right side
    61,203.12x = 3,043,575,698.68
  5. Step 5: Solve for x
    x = 3,043,575,698.68/61,203.12
  6. Step 6: Final answer
    x = 49,729.09

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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.