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Finding the Fourth Proportional to 45,807.95, 68,711.94 and 12,525.49

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Solution

The fourth proportional to 45,807.95, 68,711.94 and 12,525.49 is: 18,788.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,807.95 : 68,711.94 = 12,525.49 : x
  2. Step 2: Convert to fraction form
    45,807.95/68,711.94 = 12,525.49/x
  3. Step 3: Cross multiply
    45,807.95x = 68,711.94 × 12,525.49
  4. Step 4: Simplify right side
    45,807.95x = 860,650,654.72
  5. Step 5: Solve for x
    x = 860,650,654.72/45,807.95
  6. Step 6: Final answer
    x = 18,788.24

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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.