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Finding the Fourth Proportional to 47,803.50, 71,713.80 and 19,707.93

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Solution

The fourth proportional to 47,803.50, 71,713.80 and 19,707.93 is: 29,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,803.50 : 71,713.80 = 19,707.93 : x
  2. Step 2: Convert to fraction form
    47,803.50/71,713.80 = 19,707.93/x
  3. Step 3: Cross multiply
    47,803.50x = 71,713.80 × 19,707.93
  4. Step 4: Simplify right side
    47,803.50x = 1,413,330,550.43
  5. Step 5: Solve for x
    x = 1,413,330,550.43/47,803.50
  6. Step 6: Final answer
    x = 29,565.42

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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.