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Finding the Fourth Proportional to 58,905.72, 88,339.86 and 19,455.48

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Solution

The fourth proportional to 58,905.72, 88,339.86 and 19,455.48 is: 29,177.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,905.72 : 88,339.86 = 19,455.48 : x
  2. Step 2: Convert to fraction form
    58,905.72/88,339.86 = 19,455.48/x
  3. Step 3: Cross multiply
    58,905.72x = 88,339.86 × 19,455.48
  4. Step 4: Simplify right side
    58,905.72x = 1,718,694,379.43
  5. Step 5: Solve for x
    x = 1,718,694,379.43/58,905.72
  6. Step 6: Final answer
    x = 29,177.04

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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.