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Finding the Fourth Proportional to 82,880.63, 114,372.20 and 50,669.20

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Solution

The fourth proportional to 82,880.63, 114,372.20 and 50,669.20 is: 69,921.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,880.63 : 114,372.20 = 50,669.20 : x
  2. Step 2: Convert to fraction form
    82,880.63/114,372.20 = 50,669.20/x
  3. Step 3: Cross multiply
    82,880.63x = 114,372.20 × 50,669.20
  4. Step 4: Simplify right side
    82,880.63x = 5,795,147,051.03
  5. Step 5: Solve for x
    x = 5,795,147,051.03/82,880.63
  6. Step 6: Final answer
    x = 69,921.61

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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.