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Finding the Fourth Proportional to 82,956.76, 124,435.62 and 20,627.26

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Solution

The fourth proportional to 82,956.76, 124,435.62 and 20,627.26 is: 30,941.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,956.76 : 124,435.62 = 20,627.26 : x
  2. Step 2: Convert to fraction form
    82,956.76/124,435.62 = 20,627.26/x
  3. Step 3: Cross multiply
    82,956.76x = 124,435.62 × 20,627.26
  4. Step 4: Simplify right side
    82,956.76x = 2,566,765,887.00
  5. Step 5: Solve for x
    x = 2,566,765,887.00/82,956.76
  6. Step 6: Final answer
    x = 30,941.01

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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.