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Finding the Fourth Proportional to 58,859.99, 88,345.47 and 21,456.21

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Solution

The fourth proportional to 58,859.99, 88,345.47 and 21,456.21 is: 32,204.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,859.99 : 88,345.47 = 21,456.21 : x
  2. Step 2: Convert to fraction form
    58,859.99/88,345.47 = 21,456.21/x
  3. Step 3: Cross multiply
    58,859.99x = 88,345.47 × 21,456.21
  4. Step 4: Simplify right side
    58,859.99x = 1,895,558,956.87
  5. Step 5: Solve for x
    x = 1,895,558,956.87/58,859.99
  6. Step 6: Final answer
    x = 32,204.54

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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.