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Finding the Third Proportional to 1,555,083,915 and 3,427,143,465

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Solution

The third proportional to 1,555,083,915 and 3,427,143,465 is: 7,552,847,930.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,083,915 : 3,427,143,465 = 3,427,143,465 : x
  2. Step 2: Convert to fraction form
    1,555,083,915/3,427,143,465 = 3,427,143,465/x
  3. Step 3: Cross multiply
    1,555,083,915x = 3,427,143,465 × 3,427,143,465
  4. Step 4: Simplify right side
    1,555,083,915x = 11,745,312,329,692,207,104
  5. Step 5: Solve for x
    x = 11,745,312,329,692,207,104/1,555,083,915
  6. Step 6: Final answer
    x = 7,552,847,930.84

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.