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Finding the Fourth Proportional to 19,508.76, 26,922.48 and 11,548.08

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Solution

The fourth proportional to 19,508.76, 26,922.48 and 11,548.08 is: 15,936.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508.76 : 26,922.48 = 11,548.08 : x
  2. Step 2: Convert to fraction form
    19,508.76/26,922.48 = 11,548.08/x
  3. Step 3: Cross multiply
    19,508.76x = 26,922.48 × 11,548.08
  4. Step 4: Simplify right side
    19,508.76x = 310,902,952.84
  5. Step 5: Solve for x
    x = 310,902,952.84/19,508.76
  6. Step 6: Final answer
    x = 15,936.58

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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.