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Finding the Fourth Proportional to 34,661.72, 47,841.03 and 28,986.62

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Solution

The fourth proportional to 34,661.72, 47,841.03 and 28,986.62 is: 40,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,661.72 : 47,841.03 = 28,986.62 : x
  2. Step 2: Convert to fraction form
    34,661.72/47,841.03 = 28,986.62/x
  3. Step 3: Cross multiply
    34,661.72x = 47,841.03 × 28,986.62
  4. Step 4: Simplify right side
    34,661.72x = 1,386,749,517.81
  5. Step 5: Solve for x
    x = 1,386,749,517.81/34,661.72
  6. Step 6: Final answer
    x = 40,008.10

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Why These Related Problems?

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