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Finding the Fourth Proportional to 45,783.63, 68,676.66 and 14,618.88

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Solution

The fourth proportional to 45,783.63, 68,676.66 and 14,618.88 is: 21,928.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,783.63 : 68,676.66 = 14,618.88 : x
  2. Step 2: Convert to fraction form
    45,783.63/68,676.66 = 14,618.88/x
  3. Step 3: Cross multiply
    45,783.63x = 68,676.66 × 14,618.88
  4. Step 4: Simplify right side
    45,783.63x = 1,003,975,851.34
  5. Step 5: Solve for x
    x = 1,003,975,851.34/45,783.63
  6. Step 6: Final answer
    x = 21,928.71

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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.