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Finding the Fourth Proportional to 47,339.52, 71,020.16 and 14,058.86

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Solution

The fourth proportional to 47,339.52, 71,020.16 and 14,058.86 is: 21,091.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,339.52 : 71,020.16 = 14,058.86 : x
  2. Step 2: Convert to fraction form
    47,339.52/71,020.16 = 14,058.86/x
  3. Step 3: Cross multiply
    47,339.52x = 71,020.16 × 14,058.86
  4. Step 4: Simplify right side
    47,339.52x = 998,462,061.22
  5. Step 5: Solve for x
    x = 998,462,061.22/47,339.52
  6. Step 6: Final answer
    x = 21,091.51

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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.