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Finding the Fourth Proportional to 18,569.70, 27,862.74 and 7,497.99

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Solution

The fourth proportional to 18,569.70, 27,862.74 and 7,497.99 is: 11,250.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.70 : 27,862.74 = 7,497.99 : x
  2. Step 2: Convert to fraction form
    18,569.70/27,862.74 = 7,497.99/x
  3. Step 3: Cross multiply
    18,569.70x = 27,862.74 × 7,497.99
  4. Step 4: Simplify right side
    18,569.70x = 208,914,545.89
  5. Step 5: Solve for x
    x = 208,914,545.89/18,569.70
  6. Step 6: Final answer
    x = 11,250.29

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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.