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Finding the Fourth Proportional to 82,630.56, 123,809.64 and 47,599.68

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Solution

The fourth proportional to 82,630.56, 123,809.64 and 47,599.68 is: 71,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,630.56 : 123,809.64 = 47,599.68 : x
  2. Step 2: Convert to fraction form
    82,630.56/123,809.64 = 47,599.68/x
  3. Step 3: Cross multiply
    82,630.56x = 123,809.64 × 47,599.68
  4. Step 4: Simplify right side
    82,630.56x = 5,893,299,244.92
  5. Step 5: Solve for x
    x = 5,893,299,244.92/82,630.56
  6. Step 6: Final answer
    x = 71,321.06

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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.