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Finding the Fourth Proportional to 19,703.88, 27,194.98 and 12,633.16

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Solution

The fourth proportional to 19,703.88, 27,194.98 and 12,633.16 is: 17,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.88 : 27,194.98 = 12,633.16 : x
  2. Step 2: Convert to fraction form
    19,703.88/27,194.98 = 12,633.16/x
  3. Step 3: Cross multiply
    19,703.88x = 27,194.98 × 12,633.16
  4. Step 4: Simplify right side
    19,703.88x = 343,558,533.54
  5. Step 5: Solve for x
    x = 343,558,533.54/19,703.88
  6. Step 6: Final answer
    x = 17,436.09

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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.