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Finding the Fourth Proportional to 19,228.98, 28,852.35 and 7,545.30

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Solution

The fourth proportional to 19,228.98, 28,852.35 and 7,545.30 is: 11,321.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.98 : 28,852.35 = 7,545.30 : x
  2. Step 2: Convert to fraction form
    19,228.98/28,852.35 = 7,545.30/x
  3. Step 3: Cross multiply
    19,228.98x = 28,852.35 × 7,545.30
  4. Step 4: Simplify right side
    19,228.98x = 217,699,636.46
  5. Step 5: Solve for x
    x = 217,699,636.46/19,228.98
  6. Step 6: Final answer
    x = 11,321.43

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