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Finding the Fourth Proportional to 28,566.86, 39,418.53 and 16,632.32

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Solution

The fourth proportional to 28,566.86, 39,418.53 and 16,632.32 is: 22,950.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.86 : 39,418.53 = 16,632.32 : x
  2. Step 2: Convert to fraction form
    28,566.86/39,418.53 = 16,632.32/x
  3. Step 3: Cross multiply
    28,566.86x = 39,418.53 × 16,632.32
  4. Step 4: Simplify right side
    28,566.86x = 655,621,604.89
  5. Step 5: Solve for x
    x = 655,621,604.89/28,566.86
  6. Step 6: Final answer
    x = 22,950.43

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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.