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Finding the Fourth Proportional to 15,998.77, 22,078.74 and 10,029.88

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Solution

The fourth proportional to 15,998.77, 22,078.74 and 10,029.88 is: 13,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.77 : 22,078.74 = 10,029.88 : x
  2. Step 2: Convert to fraction form
    15,998.77/22,078.74 = 10,029.88/x
  3. Step 3: Cross multiply
    15,998.77x = 22,078.74 × 10,029.88
  4. Step 4: Simplify right side
    15,998.77x = 221,447,112.75
  5. Step 5: Solve for x
    x = 221,447,112.75/15,998.77
  6. Step 6: Final answer
    x = 13,841.51

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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.