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Finding the Fourth Proportional to 45,848.39, 68,803.11 and 18,852.89

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Solution

The fourth proportional to 45,848.39, 68,803.11 and 18,852.89 is: 28,291.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,848.39 : 68,803.11 = 18,852.89 : x
  2. Step 2: Convert to fraction form
    45,848.39/68,803.11 = 18,852.89/x
  3. Step 3: Cross multiply
    45,848.39x = 68,803.11 × 18,852.89
  4. Step 4: Simplify right side
    45,848.39x = 1,297,137,120.47
  5. Step 5: Solve for x
    x = 1,297,137,120.47/45,848.39
  6. Step 6: Final answer
    x = 28,291.88

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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.