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Finding the Fourth Proportional to 61,751.34, 92,628.90 and 19,631.88

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Solution

The fourth proportional to 61,751.34, 92,628.90 and 19,631.88 is: 29,448.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,751.34 : 92,628.90 = 19,631.88 : x
  2. Step 2: Convert to fraction form
    61,751.34/92,628.90 = 19,631.88/x
  3. Step 3: Cross multiply
    61,751.34x = 92,628.90 × 19,631.88
  4. Step 4: Simplify right side
    61,751.34x = 1,818,479,449.33
  5. Step 5: Solve for x
    x = 1,818,479,449.33/61,751.34
  6. Step 6: Final answer
    x = 29,448.42

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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.