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Finding the Third Proportional to 7,908,905.81 and 12,325,749.75

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Solution

The third proportional to 7,908,905.81 and 12,325,749.75 is: 19,209,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908,905.81 : 12,325,749.75 = 12,325,749.75 : x
  2. Step 2: Convert to fraction form
    7,908,905.81/12,325,749.75 = 12,325,749.75/x
  3. Step 3: Cross multiply
    7,908,905.81x = 12,325,749.75 × 12,325,749.75
  4. Step 4: Simplify right side
    7,908,905.81x = 151,924,106,899,625.06
  5. Step 5: Solve for x
    x = 151,924,106,899,625.06/7,908,905.81
  6. Step 6: Final answer
    x = 19,209,244.68

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.