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Finding the Third Proportional to 4,214,911.50 and 9,069,639.75

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Solution

The third proportional to 4,214,911.50 and 9,069,639.75 is: 19,516,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,214,911.50 : 9,069,639.75 = 9,069,639.75 : x
  2. Step 2: Convert to fraction form
    4,214,911.50/9,069,639.75 = 9,069,639.75/x
  3. Step 3: Cross multiply
    4,214,911.50x = 9,069,639.75 × 9,069,639.75
  4. Step 4: Simplify right side
    4,214,911.50x = 82,258,365,194,780.06
  5. Step 5: Solve for x
    x = 82,258,365,194,780.06/4,214,911.50
  6. Step 6: Final answer
    x = 19,516,036.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.