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Finding the Fourth Proportional to 28,655.16, 39,545.91 and 16,556.16

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Solution

The fourth proportional to 28,655.16, 39,545.91 and 16,556.16 is: 22,848.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.16 : 39,545.91 = 16,556.16 : x
  2. Step 2: Convert to fraction form
    28,655.16/39,545.91 = 16,556.16/x
  3. Step 3: Cross multiply
    28,655.16x = 39,545.91 × 16,556.16
  4. Step 4: Simplify right side
    28,655.16x = 654,728,413.31
  5. Step 5: Solve for x
    x = 654,728,413.31/28,655.16
  6. Step 6: Final answer
    x = 22,848.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.