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Finding the Third Proportional to 1,392,526.69 and 2,130,165.84

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Solution

The third proportional to 1,392,526.69 and 2,130,165.84 is: 3,258,541.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,526.69 : 2,130,165.84 = 2,130,165.84 : x
  2. Step 2: Convert to fraction form
    1,392,526.69/2,130,165.84 = 2,130,165.84/x
  3. Step 3: Cross multiply
    1,392,526.69x = 2,130,165.84 × 2,130,165.84
  4. Step 4: Simplify right side
    1,392,526.69x = 4,537,606,521,879.15
  5. Step 5: Solve for x
    x = 4,537,606,521,879.15/1,392,526.69
  6. Step 6: Final answer
    x = 3,258,541.87

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.