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Finding the Fourth Proportional to 19,157.66, 26,437.16 and 11,091.66

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Solution

The fourth proportional to 19,157.66, 26,437.16 and 11,091.66 is: 15,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.66 : 26,437.16 = 11,091.66 : x
  2. Step 2: Convert to fraction form
    19,157.66/26,437.16 = 11,091.66/x
  3. Step 3: Cross multiply
    19,157.66x = 26,437.16 × 11,091.66
  4. Step 4: Simplify right side
    19,157.66x = 293,231,934.63
  5. Step 5: Solve for x
    x = 293,231,934.63/19,157.66
  6. Step 6: Final answer
    x = 15,306.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.