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Finding the Fourth Proportional to 34,687.22, 47,966.78 and 33,120.78

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Solution

The fourth proportional to 34,687.22, 47,966.78 and 33,120.78 is: 45,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,687.22 : 47,966.78 = 33,120.78 : x
  2. Step 2: Convert to fraction form
    34,687.22/47,966.78 = 33,120.78/x
  3. Step 3: Cross multiply
    34,687.22x = 47,966.78 × 33,120.78
  4. Step 4: Simplify right side
    34,687.22x = 1,588,697,002.08
  5. Step 5: Solve for x
    x = 1,588,697,002.08/34,687.22
  6. Step 6: Final answer
    x = 45,800.65

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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.