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Finding the Third Proportional to 9,778,587.75 and 21,257,446.50

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Solution

The third proportional to 9,778,587.75 and 21,257,446.50 is: 46,211,072.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778,587.75 : 21,257,446.50 = 21,257,446.50 : x
  2. Step 2: Convert to fraction form
    9,778,587.75/21,257,446.50 = 21,257,446.50/x
  3. Step 3: Cross multiply
    9,778,587.75x = 21,257,446.50 × 21,257,446.50
  4. Step 4: Simplify right side
    9,778,587.75x = 451,879,031,700,362.25
  5. Step 5: Solve for x
    x = 451,879,031,700,362.25/9,778,587.75
  6. Step 6: Final answer
    x = 46,211,072.93

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.