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Finding the Fourth Proportional to 22,486.78, 31,026.93 and 13,050.28

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Solution

The fourth proportional to 22,486.78, 31,026.93 and 13,050.28 is: 18,006.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.78 : 31,026.93 = 13,050.28 : x
  2. Step 2: Convert to fraction form
    22,486.78/31,026.93 = 13,050.28/x
  3. Step 3: Cross multiply
    22,486.78x = 31,026.93 × 13,050.28
  4. Step 4: Simplify right side
    22,486.78x = 404,910,124.04
  5. Step 5: Solve for x
    x = 404,910,124.04/22,486.78
  6. Step 6: Final answer
    x = 18,006.59

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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.