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Finding the Fourth Proportional to 31,703.80, 43,750.81 and 17,363.47

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Solution

The fourth proportional to 31,703.80, 43,750.81 and 17,363.47 is: 23,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.80 : 43,750.81 = 17,363.47 : x
  2. Step 2: Convert to fraction form
    31,703.80/43,750.81 = 17,363.47/x
  3. Step 3: Cross multiply
    31,703.80x = 43,750.81 × 17,363.47
  4. Step 4: Simplify right side
    31,703.80x = 759,665,876.91
  5. Step 5: Solve for x
    x = 759,665,876.91/31,703.80
  6. Step 6: Final answer
    x = 23,961.35

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1.5x scale

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.