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Finding the Fourth Proportional to 22,415.67, 33,612.17 and 9,939.51

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Solution

The fourth proportional to 22,415.67, 33,612.17 and 9,939.51 is: 14,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,415.67 : 33,612.17 = 9,939.51 : x
  2. Step 2: Convert to fraction form
    22,415.67/33,612.17 = 9,939.51/x
  3. Step 3: Cross multiply
    22,415.67x = 33,612.17 × 9,939.51
  4. Step 4: Simplify right side
    22,415.67x = 334,088,450.14
  5. Step 5: Solve for x
    x = 334,088,450.14/22,415.67
  6. Step 6: Final answer
    x = 14,904.24

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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.