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Finding the Fourth Proportional to 58,560.49, 80,813.73 and 31,703

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Solution

The fourth proportional to 58,560.49, 80,813.73 and 31,703 is: 43,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,560.49 : 80,813.73 = 31,703 : x
  2. Step 2: Convert to fraction form
    58,560.49/80,813.73 = 31,703/x
  3. Step 3: Cross multiply
    58,560.49x = 80,813.73 × 31,703
  4. Step 4: Simplify right side
    58,560.49x = 2,562,037,682.19
  5. Step 5: Solve for x
    x = 2,562,037,682.19/58,560.49
  6. Step 6: Final answer
    x = 43,750.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.