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Finding the Fourth Proportional to 19,703.82, 27,191.77 and 10,751.47

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Solution

The fourth proportional to 19,703.82, 27,191.77 and 10,751.47 is: 14,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.82 : 27,191.77 = 10,751.47 : x
  2. Step 2: Convert to fraction form
    19,703.82/27,191.77 = 10,751.47/x
  3. Step 3: Cross multiply
    19,703.82x = 27,191.77 × 10,751.47
  4. Step 4: Simplify right side
    19,703.82x = 292,351,499.40
  5. Step 5: Solve for x
    x = 292,351,499.40/19,703.82
  6. Step 6: Final answer
    x = 14,837.30

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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.