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Finding the Fourth Proportional to 22,999.68, 31,739.40 and 13,063.68

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Solution

The fourth proportional to 22,999.68, 31,739.40 and 13,063.68 is: 18,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,999.68 : 31,739.40 = 13,063.68 : x
  2. Step 2: Convert to fraction form
    22,999.68/31,739.40 = 13,063.68/x
  3. Step 3: Cross multiply
    22,999.68x = 31,739.40 × 13,063.68
  4. Step 4: Simplify right side
    22,999.68x = 414,633,364.99
  5. Step 5: Solve for x
    x = 414,633,364.99/22,999.68
  6. Step 6: Final answer
    x = 18,027.79

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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.