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Finding the Fourth Proportional to 34,758.90, 47,964.87 and 19,652.30

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Solution

The fourth proportional to 34,758.90, 47,964.87 and 19,652.30 is: 27,118.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,758.90 : 47,964.87 = 19,652.30 : x
  2. Step 2: Convert to fraction form
    34,758.90/47,964.87 = 19,652.30/x
  3. Step 3: Cross multiply
    34,758.90x = 47,964.87 × 19,652.30
  4. Step 4: Simplify right side
    34,758.90x = 942,620,014.70
  5. Step 5: Solve for x
    x = 942,620,014.70/34,758.90
  6. Step 6: Final answer
    x = 27,118.81

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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.