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Finding the Third Proportional to 9,174,772.55 and 12,858,381.07

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Solution

The third proportional to 9,174,772.55 and 12,858,381.07 is: 18,020,933.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174,772.55 : 12,858,381.07 = 12,858,381.07 : x
  2. Step 2: Convert to fraction form
    9,174,772.55/12,858,381.07 = 12,858,381.07/x
  3. Step 3: Cross multiply
    9,174,772.55x = 12,858,381.07 × 12,858,381.07
  4. Step 4: Simplify right side
    9,174,772.55x = 165,337,963,749,358
  5. Step 5: Solve for x
    x = 165,337,963,749,358/9,174,772.55
  6. Step 6: Final answer
    x = 18,020,933.26

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.