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Finding the Third Proportional to 1,387,924.88 and 2,070,337.22

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Solution

The third proportional to 1,387,924.88 and 2,070,337.22 is: 3,088,276.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,924.88 : 2,070,337.22 = 2,070,337.22 : x
  2. Step 2: Convert to fraction form
    1,387,924.88/2,070,337.22 = 2,070,337.22/x
  3. Step 3: Cross multiply
    1,387,924.88x = 2,070,337.22 × 2,070,337.22
  4. Step 4: Simplify right side
    1,387,924.88x = 4,286,296,199,341.49
  5. Step 5: Solve for x
    x = 4,286,296,199,341.49/1,387,924.88
  6. Step 6: Final answer
    x = 3,088,276.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.