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Finding the Third Proportional to 1,238,881.50 and 1,817,380.13

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Solution

The third proportional to 1,238,881.50 and 1,817,380.13 is: 2,666,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,881.50 : 1,817,380.13 = 1,817,380.13 : x
  2. Step 2: Convert to fraction form
    1,238,881.50/1,817,380.13 = 1,817,380.13/x
  3. Step 3: Cross multiply
    1,238,881.50x = 1,817,380.13 × 1,817,380.13
  4. Step 4: Simplify right side
    1,238,881.50x = 3,302,870,518,745.02
  5. Step 5: Solve for x
    x = 3,302,870,518,745.02/1,238,881.50
  6. Step 6: Final answer
    x = 2,666,010.04

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.