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Finding the Third Proportional to 1,615,312.13 and 2,500,851.38

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Solution

The third proportional to 1,615,312.13 and 2,500,851.38 is: 3,871,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,312.13 : 2,500,851.38 = 2,500,851.38 : x
  2. Step 2: Convert to fraction form
    1,615,312.13/2,500,851.38 = 2,500,851.38/x
  3. Step 3: Cross multiply
    1,615,312.13x = 2,500,851.38 × 2,500,851.38
  4. Step 4: Simplify right side
    1,615,312.13x = 6,254,257,599,839.39
  5. Step 5: Solve for x
    x = 6,254,257,599,839.39/1,615,312.13
  6. Step 6: Final answer
    x = 3,871,857.03

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.