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Finding the Fourth Proportional to 40,573.41, 60,860.12 and 12,869.25

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Solution

The fourth proportional to 40,573.41, 60,860.12 and 12,869.25 is: 19,303.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,573.41 : 60,860.12 = 12,869.25 : x
  2. Step 2: Convert to fraction form
    40,573.41/60,860.12 = 12,869.25/x
  3. Step 3: Cross multiply
    40,573.41x = 60,860.12 × 12,869.25
  4. Step 4: Simplify right side
    40,573.41x = 783,224,034.96
  5. Step 5: Solve for x
    x = 783,224,034.96/40,573.41
  6. Step 6: Final answer
    x = 19,303.88

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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.