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Finding the Fourth Proportional to 13,700.74, 20,551.10 and 3,841.48

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Solution

The fourth proportional to 13,700.74, 20,551.10 and 3,841.48 is: 5,762.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.74 : 20,551.10 = 3,841.48 : x
  2. Step 2: Convert to fraction form
    13,700.74/20,551.10 = 3,841.48/x
  3. Step 3: Cross multiply
    13,700.74x = 20,551.10 × 3,841.48
  4. Step 4: Simplify right side
    13,700.74x = 78,946,639.63
  5. Step 5: Solve for x
    x = 78,946,639.63/13,700.74
  6. Step 6: Final answer
    x = 5,762.22

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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.