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Finding the Fourth Proportional to 19,338.83, 29,011.03 and 7,335.41

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Solution

The fourth proportional to 19,338.83, 29,011.03 and 7,335.41 is: 11,004.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.83 : 29,011.03 = 7,335.41 : x
  2. Step 2: Convert to fraction form
    19,338.83/29,011.03 = 7,335.41/x
  3. Step 3: Cross multiply
    19,338.83x = 29,011.03 × 7,335.41
  4. Step 4: Simplify right side
    19,338.83x = 212,807,636.18
  5. Step 5: Solve for x
    x = 212,807,636.18/19,338.83
  6. Step 6: Final answer
    x = 11,004.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.