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Finding the Third Proportional to 1,427,405.63 and 3,090,031.88

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Solution

The third proportional to 1,427,405.63 and 3,090,031.88 is: 6,689,266.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,405.63 : 3,090,031.88 = 3,090,031.88 : x
  2. Step 2: Convert to fraction form
    1,427,405.63/3,090,031.88 = 3,090,031.88/x
  3. Step 3: Cross multiply
    1,427,405.63x = 3,090,031.88 × 3,090,031.88
  4. Step 4: Simplify right side
    1,427,405.63x = 9,548,296,988,516.02
  5. Step 5: Solve for x
    x = 9,548,296,988,516.02/1,427,405.63
  6. Step 6: Final answer
    x = 6,689,266.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.