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Finding the Fourth Proportional to 58,489.93, 87,734.79 and 19,046.98

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Solution

The fourth proportional to 58,489.93, 87,734.79 and 19,046.98 is: 28,570.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,489.93 : 87,734.79 = 19,046.98 : x
  2. Step 2: Convert to fraction form
    58,489.93/87,734.79 = 19,046.98/x
  3. Step 3: Cross multiply
    58,489.93x = 87,734.79 × 19,046.98
  4. Step 4: Simplify right side
    58,489.93x = 1,671,082,790.43
  5. Step 5: Solve for x
    x = 1,671,082,790.43/58,489.93
  6. Step 6: Final answer
    x = 28,570.44

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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.