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Finding the Third Proportional to 7,439,388 and 15,771,564

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Solution

The third proportional to 7,439,388 and 15,771,564 is: 33,435,845.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439,388 : 15,771,564 = 15,771,564 : x
  2. Step 2: Convert to fraction form
    7,439,388/15,771,564 = 15,771,564/x
  3. Step 3: Cross multiply
    7,439,388x = 15,771,564 × 15,771,564
  4. Step 4: Simplify right side
    7,439,388x = 248,742,231,006,096
  5. Step 5: Solve for x
    x = 248,742,231,006,096/7,439,388
  6. Step 6: Final answer
    x = 33,435,845.93

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.