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Finding the Fourth Proportional to 19,862.16, 27,410.01 and 10,909.88

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Solution

The fourth proportional to 19,862.16, 27,410.01 and 10,909.88 is: 15,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.16 : 27,410.01 = 10,909.88 : x
  2. Step 2: Convert to fraction form
    19,862.16/27,410.01 = 10,909.88/x
  3. Step 3: Cross multiply
    19,862.16x = 27,410.01 × 10,909.88
  4. Step 4: Simplify right side
    19,862.16x = 299,039,782.85
  5. Step 5: Solve for x
    x = 299,039,782.85/19,862.16
  6. Step 6: Final answer
    x = 15,055.75

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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.