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Finding the Fourth Proportional to 34,722.68, 47,917.06 and 19,620.23

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Solution

The fourth proportional to 34,722.68, 47,917.06 and 19,620.23 is: 27,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,722.68 : 47,917.06 = 19,620.23 : x
  2. Step 2: Convert to fraction form
    34,722.68/47,917.06 = 19,620.23/x
  3. Step 3: Cross multiply
    34,722.68x = 47,917.06 × 19,620.23
  4. Step 4: Simplify right side
    34,722.68x = 940,143,449.49
  5. Step 5: Solve for x
    x = 940,143,449.49/34,722.68
  6. Step 6: Final answer
    x = 27,075.78

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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.