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Finding the Third Proportional to 7,776 and 14,890.50

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Solution

The third proportional to 7,776 and 14,890.50 is: 28,514.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776 : 14,890.50 = 14,890.50 : x
  2. Step 2: Convert to fraction form
    7,776/14,890.50 = 14,890.50/x
  3. Step 3: Cross multiply
    7,776x = 14,890.50 × 14,890.50
  4. Step 4: Simplify right side
    7,776x = 221,726,990.25
  5. Step 5: Solve for x
    x = 221,726,990.25/7,776
  6. Step 6: Final answer
    x = 28,514.27

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.