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Finding the Third Proportional to 1,388,030.63 and 1,890,956.25

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Solution

The third proportional to 1,388,030.63 and 1,890,956.25 is: 2,576,107.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,030.63 : 1,890,956.25 = 1,890,956.25 : x
  2. Step 2: Convert to fraction form
    1,388,030.63/1,890,956.25 = 1,890,956.25/x
  3. Step 3: Cross multiply
    1,388,030.63x = 1,890,956.25 × 1,890,956.25
  4. Step 4: Simplify right side
    1,388,030.63x = 3,575,715,539,414.06
  5. Step 5: Solve for x
    x = 3,575,715,539,414.06/1,388,030.63
  6. Step 6: Final answer
    x = 2,576,107.09

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.