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Finding the Fourth Proportional to 61,442.49, 92,163.65 and 19,326.27

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Solution

The fourth proportional to 61,442.49, 92,163.65 and 19,326.27 is: 28,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,442.49 : 92,163.65 = 19,326.27 : x
  2. Step 2: Convert to fraction form
    61,442.49/92,163.65 = 19,326.27/x
  3. Step 3: Cross multiply
    61,442.49x = 92,163.65 × 19,326.27
  4. Step 4: Simplify right side
    61,442.49x = 1,781,179,584.09
  5. Step 5: Solve for x
    x = 1,781,179,584.09/61,442.49
  6. Step 6: Final answer
    x = 28,989.38

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1.5x scale

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.