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Finding the Fourth Proportional to 61,343.28, 92,004.48 and 19,790.28

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Solution

The fourth proportional to 61,343.28, 92,004.48 and 19,790.28 is: 29,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,343.28 : 92,004.48 = 19,790.28 : x
  2. Step 2: Convert to fraction form
    61,343.28/92,004.48 = 19,790.28/x
  3. Step 3: Cross multiply
    61,343.28x = 92,004.48 × 19,790.28
  4. Step 4: Simplify right side
    61,343.28x = 1,820,794,420.45
  5. Step 5: Solve for x
    x = 1,820,794,420.45/61,343.28
  6. Step 6: Final answer
    x = 29,682.05

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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.