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Finding the Fourth Proportional to 19,476, 26,871.12 and 11,296.32

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Solution

The fourth proportional to 19,476, 26,871.12 and 11,296.32 is: 15,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,476 : 26,871.12 = 11,296.32 : x
  2. Step 2: Convert to fraction form
    19,476/26,871.12 = 11,296.32/x
  3. Step 3: Cross multiply
    19,476x = 26,871.12 × 11,296.32
  4. Step 4: Simplify right side
    19,476x = 303,544,770.28
  5. Step 5: Solve for x
    x = 303,544,770.28/19,476
  6. Step 6: Final answer
    x = 15,585.58

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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.