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Finding the Fourth Proportional to 40,574.61, 60,858.50 and 13,918.41

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Solution

The fourth proportional to 40,574.61, 60,858.50 and 13,918.41 is: 20,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,574.61 : 60,858.50 = 13,918.41 : x
  2. Step 2: Convert to fraction form
    40,574.61/60,858.50 = 13,918.41/x
  3. Step 3: Cross multiply
    40,574.61x = 60,858.50 × 13,918.41
  4. Step 4: Simplify right side
    40,574.61x = 847,053,485.39
  5. Step 5: Solve for x
    x = 847,053,485.39/40,574.61
  6. Step 6: Final answer
    x = 20,876.44

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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.