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Finding the Third Proportional to 12,617,688 and 18,905,481

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Solution

The third proportional to 12,617,688 and 18,905,481 is: 28,326,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617,688 : 18,905,481 = 18,905,481 : x
  2. Step 2: Convert to fraction form
    12,617,688/18,905,481 = 18,905,481/x
  3. Step 3: Cross multiply
    12,617,688x = 18,905,481 × 18,905,481
  4. Step 4: Simplify right side
    12,617,688x = 357,417,211,841,361
  5. Step 5: Solve for x
    x = 357,417,211,841,361/12,617,688
  6. Step 6: Final answer
    x = 28,326,680.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.