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Finding the Fourth Proportional to 19,507.81, 29,265.50 and 7,029.49

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Solution

The fourth proportional to 19,507.81, 29,265.50 and 7,029.49 is: 10,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,507.81 : 29,265.50 = 7,029.49 : x
  2. Step 2: Convert to fraction form
    19,507.81/29,265.50 = 7,029.49/x
  3. Step 3: Cross multiply
    19,507.81x = 29,265.50 × 7,029.49
  4. Step 4: Simplify right side
    19,507.81x = 205,721,539.60
  5. Step 5: Solve for x
    x = 205,721,539.60/19,507.81
  6. Step 6: Final answer
    x = 10,545.60

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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.