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Finding the Fourth Proportional to 3,865,648.02, 5,334,448.12 and 2,146,879.25

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Solution

The fourth proportional to 3,865,648.02, 5,334,448.12 and 2,146,879.25 is: 2,962,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,648.02 : 5,334,448.12 = 2,146,879.25 : x
  2. Step 2: Convert to fraction form
    3,865,648.02/5,334,448.12 = 2,146,879.25/x
  3. Step 3: Cross multiply
    3,865,648.02x = 5,334,448.12 × 2,146,879.25
  4. Step 4: Simplify right side
    3,865,648.02x = 11,452,415,968,295.11
  5. Step 5: Solve for x
    x = 11,452,415,968,295.11/3,865,648.02
  6. Step 6: Final answer
    x = 2,962,612.20

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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.