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Finding the Fourth Proportional to 66,878.31, 100,246.76 and 24,731.35

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Solution

The fourth proportional to 66,878.31, 100,246.76 and 24,731.35 is: 37,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,878.31 : 100,246.76 = 24,731.35 : x
  2. Step 2: Convert to fraction form
    66,878.31/100,246.76 = 24,731.35/x
  3. Step 3: Cross multiply
    66,878.31x = 100,246.76 × 24,731.35
  4. Step 4: Simplify right side
    66,878.31x = 2,479,237,707.93
  5. Step 5: Solve for x
    x = 2,479,237,707.93/66,878.31
  6. Step 6: Final answer
    x = 37,070.88

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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.