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Finding the Fourth Proportional to 12,710.52, 19,060.92 and 4,388.99

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Solution

The fourth proportional to 12,710.52, 19,060.92 and 4,388.99 is: 6,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.52 : 19,060.92 = 4,388.99 : x
  2. Step 2: Convert to fraction form
    12,710.52/19,060.92 = 4,388.99/x
  3. Step 3: Cross multiply
    12,710.52x = 19,060.92 × 4,388.99
  4. Step 4: Simplify right side
    12,710.52x = 83,658,091.97
  5. Step 5: Solve for x
    x = 83,658,091.97/12,710.52
  6. Step 6: Final answer
    x = 6,581.80

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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.