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Finding the Fourth Proportional to 19,805.56, 27,326.86 and 10,973.56

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Solution

The fourth proportional to 19,805.56, 27,326.86 and 10,973.56 is: 15,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.56 : 27,326.86 = 10,973.56 : x
  2. Step 2: Convert to fraction form
    19,805.56/27,326.86 = 10,973.56/x
  3. Step 3: Cross multiply
    19,805.56x = 27,326.86 × 10,973.56
  4. Step 4: Simplify right side
    19,805.56x = 299,872,937.82
  5. Step 5: Solve for x
    x = 299,872,937.82/19,805.56
  6. Step 6: Final answer
    x = 15,140.85

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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.