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Finding the Fourth Proportional to 67,676.99, 101,533.06 and 20,290.17

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Solution

The fourth proportional to 67,676.99, 101,533.06 and 20,290.17 is: 30,440.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,676.99 : 101,533.06 = 20,290.17 : x
  2. Step 2: Convert to fraction form
    67,676.99/101,533.06 = 20,290.17/x
  3. Step 3: Cross multiply
    67,676.99x = 101,533.06 × 20,290.17
  4. Step 4: Simplify right side
    67,676.99x = 2,060,123,048.02
  5. Step 5: Solve for x
    x = 2,060,123,048.02/67,676.99
  6. Step 6: Final answer
    x = 30,440.52

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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.