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Finding the Fourth Proportional to 19,011.40, 26,234.96 and 11,053

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Solution

The fourth proportional to 19,011.40, 26,234.96 and 11,053 is: 15,252.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.40 : 26,234.96 = 11,053 : x
  2. Step 2: Convert to fraction form
    19,011.40/26,234.96 = 11,053/x
  3. Step 3: Cross multiply
    19,011.40x = 26,234.96 × 11,053
  4. Step 4: Simplify right side
    19,011.40x = 289,975,012.88
  5. Step 5: Solve for x
    x = 289,975,012.88/19,011.40
  6. Step 6: Final answer
    x = 15,252.69

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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.