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Finding the Fourth Proportional to 58,514.70, 87,781.16 and 19,062.63

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Solution

The fourth proportional to 58,514.70, 87,781.16 and 19,062.63 is: 28,596.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,514.70 : 87,781.16 = 19,062.63 : x
  2. Step 2: Convert to fraction form
    58,514.70/87,781.16 = 19,062.63/x
  3. Step 3: Cross multiply
    58,514.70x = 87,781.16 × 19,062.63
  4. Step 4: Simplify right side
    58,514.70x = 1,673,339,678.74
  5. Step 5: Solve for x
    x = 1,673,339,678.74/58,514.70
  6. Step 6: Final answer
    x = 28,596.91

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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.