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Finding the Fourth Proportional to 7,122,451.88, 9,828,992.23 and 3,859,264.03

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Solution

The fourth proportional to 7,122,451.88, 9,828,992.23 and 3,859,264.03 is: 5,325,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122,451.88 : 9,828,992.23 = 3,859,264.03 : x
  2. Step 2: Convert to fraction form
    7,122,451.88/9,828,992.23 = 3,859,264.03/x
  3. Step 3: Cross multiply
    7,122,451.88x = 9,828,992.23 × 3,859,264.03
  4. Step 4: Simplify right side
    7,122,451.88x = 37,932,676,130,167.84
  5. Step 5: Solve for x
    x = 37,932,676,130,167.84/7,122,451.88
  6. Step 6: Final answer
    x = 5,325,789.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.