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Finding the Fourth Proportional to 31,703.73, 47,553.96 and 10,643.93

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Solution

The fourth proportional to 31,703.73, 47,553.96 and 10,643.93 is: 15,965.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.73 : 47,553.96 = 10,643.93 : x
  2. Step 2: Convert to fraction form
    31,703.73/47,553.96 = 10,643.93/x
  3. Step 3: Cross multiply
    31,703.73x = 47,553.96 × 10,643.93
  4. Step 4: Simplify right side
    31,703.73x = 506,161,021.46
  5. Step 5: Solve for x
    x = 506,161,021.46/31,703.73
  6. Step 6: Final answer
    x = 15,965.35

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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.