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Finding the Third Proportional to 1,551,669.75 and 2,421,815.63

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Solution

The third proportional to 1,551,669.75 and 2,421,815.63 is: 3,779,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551,669.75 : 2,421,815.63 = 2,421,815.63 : x
  2. Step 2: Convert to fraction form
    1,551,669.75/2,421,815.63 = 2,421,815.63/x
  3. Step 3: Cross multiply
    1,551,669.75x = 2,421,815.63 × 2,421,815.63
  4. Step 4: Simplify right side
    1,551,669.75x = 5,865,190,921,494.14
  5. Step 5: Solve for x
    x = 5,865,190,921,494.14/1,551,669.75
  6. Step 6: Final answer
    x = 3,779,922.19

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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.