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Finding the Fourth Proportional to 19,908.77, 29,881.62 and 10,054.97

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Solution

The fourth proportional to 19,908.77, 29,881.62 and 10,054.97 is: 15,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908.77 : 29,881.62 = 10,054.97 : x
  2. Step 2: Convert to fraction form
    19,908.77/29,881.62 = 10,054.97/x
  3. Step 3: Cross multiply
    19,908.77x = 29,881.62 × 10,054.97
  4. Step 4: Simplify right side
    19,908.77x = 300,458,643.24
  5. Step 5: Solve for x
    x = 300,458,643.24/19,908.77
  6. Step 6: Final answer
    x = 15,091.77

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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.