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Finding the Fourth Proportional to 6,652,787.22, 9,980,411.70 and 2,104,980.84

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Solution

The fourth proportional to 6,652,787.22, 9,980,411.70 and 2,104,980.84 is: 3,157,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652,787.22 : 9,980,411.70 = 2,104,980.84 : x
  2. Step 2: Convert to fraction form
    6,652,787.22/9,980,411.70 = 2,104,980.84/x
  3. Step 3: Cross multiply
    6,652,787.22x = 9,980,411.70 × 2,104,980.84
  4. Step 4: Simplify right side
    6,652,787.22x = 21,008,575,403,811.82
  5. Step 5: Solve for x
    x = 21,008,575,403,811.82/6,652,787.22
  6. Step 6: Final answer
    x = 3,157,860.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.