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Finding the Third Proportional to 5,183,590.50 and 6,978,129.75

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Solution

The third proportional to 5,183,590.50 and 6,978,129.75 is: 9,393,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183,590.50 : 6,978,129.75 = 6,978,129.75 : x
  2. Step 2: Convert to fraction form
    5,183,590.50/6,978,129.75 = 6,978,129.75/x
  3. Step 3: Cross multiply
    5,183,590.50x = 6,978,129.75 × 6,978,129.75
  4. Step 4: Simplify right side
    5,183,590.50x = 48,694,294,807,835.06
  5. Step 5: Solve for x
    x = 48,694,294,807,835.06/5,183,590.50
  6. Step 6: Final answer
    x = 9,393,931.64

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.