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Finding the Fourth Proportional to 58,357.54, 87,514.26 and 18,904.06

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Solution

The fourth proportional to 58,357.54, 87,514.26 and 18,904.06 is: 28,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,357.54 : 87,514.26 = 18,904.06 : x
  2. Step 2: Convert to fraction form
    58,357.54/87,514.26 = 18,904.06/x
  3. Step 3: Cross multiply
    58,357.54x = 87,514.26 × 18,904.06
  4. Step 4: Simplify right side
    58,357.54x = 1,654,374,821.90
  5. Step 5: Solve for x
    x = 1,654,374,821.90/58,357.54
  6. Step 6: Final answer
    x = 28,348.95

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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.