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Finding the Fourth Proportional to 19,006.48, 28,511.24 and 6,521.48

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Solution

The fourth proportional to 19,006.48, 28,511.24 and 6,521.48 is: 9,782.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,006.48 : 28,511.24 = 6,521.48 : x
  2. Step 2: Convert to fraction form
    19,006.48/28,511.24 = 6,521.48/x
  3. Step 3: Cross multiply
    19,006.48x = 28,511.24 × 6,521.48
  4. Step 4: Simplify right side
    19,006.48x = 185,935,481.44
  5. Step 5: Solve for x
    x = 185,935,481.44/19,006.48
  6. Step 6: Final answer
    x = 9,782.74

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1.5x scale

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.