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Finding the Fourth Proportional to 34,641.95, 51,939.86 and 12,452.45

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Solution

The fourth proportional to 34,641.95, 51,939.86 and 12,452.45 is: 18,670.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,641.95 : 51,939.86 = 12,452.45 : x
  2. Step 2: Convert to fraction form
    34,641.95/51,939.86 = 12,452.45/x
  3. Step 3: Cross multiply
    34,641.95x = 51,939.86 × 12,452.45
  4. Step 4: Simplify right side
    34,641.95x = 646,778,187.70
  5. Step 5: Solve for x
    x = 646,778,187.70/34,641.95
  6. Step 6: Final answer
    x = 18,670.37

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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.