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Finding the Fourth Proportional to 19,698.56, 27,187.52 and 11,741.30

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Solution

The fourth proportional to 19,698.56, 27,187.52 and 11,741.30 is: 16,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.56 : 27,187.52 = 11,741.30 : x
  2. Step 2: Convert to fraction form
    19,698.56/27,187.52 = 11,741.30/x
  3. Step 3: Cross multiply
    19,698.56x = 27,187.52 × 11,741.30
  4. Step 4: Simplify right side
    19,698.56x = 319,216,828.58
  5. Step 5: Solve for x
    x = 319,216,828.58/19,698.56
  6. Step 6: Final answer
    x = 16,205.08

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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.