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Finding the Fourth Proportional to 61,364.49, 92,047.88 and 19,243.64

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Solution

The fourth proportional to 61,364.49, 92,047.88 and 19,243.64 is: 28,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,364.49 : 92,047.88 = 19,243.64 : x
  2. Step 2: Convert to fraction form
    61,364.49/92,047.88 = 19,243.64/x
  3. Step 3: Cross multiply
    61,364.49x = 92,047.88 × 19,243.64
  4. Step 4: Simplify right side
    61,364.49x = 1,771,335,709.03
  5. Step 5: Solve for x
    x = 1,771,335,709.03/61,364.49
  6. Step 6: Final answer
    x = 28,865.81

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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.