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Finding the Third Proportional to 1,931,122.69 and 2,921,543.44

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Solution

The third proportional to 1,931,122.69 and 2,921,543.44 is: 4,419,924.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,122.69 : 2,921,543.44 = 2,921,543.44 : x
  2. Step 2: Convert to fraction form
    1,931,122.69/2,921,543.44 = 2,921,543.44/x
  3. Step 3: Cross multiply
    1,931,122.69x = 2,921,543.44 × 2,921,543.44
  4. Step 4: Simplify right side
    1,931,122.69x = 8,535,416,057,199.32
  5. Step 5: Solve for x
    x = 8,535,416,057,199.32/1,931,122.69
  6. Step 6: Final answer
    x = 4,419,924.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.