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Finding the Fourth Proportional to 6,878,562.32, 10,317,868.32 and 2,086,293.08

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Solution

The fourth proportional to 6,878,562.32, 10,317,868.32 and 2,086,293.08 is: 3,129,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878,562.32 : 10,317,868.32 = 2,086,293.08 : x
  2. Step 2: Convert to fraction form
    6,878,562.32/10,317,868.32 = 2,086,293.08/x
  3. Step 3: Cross multiply
    6,878,562.32x = 10,317,868.32 × 2,086,293.08
  4. Step 4: Simplify right side
    6,878,562.32x = 21,526,097,276,367.23
  5. Step 5: Solve for x
    x = 21,526,097,276,367.23/6,878,562.32
  6. Step 6: Final answer
    x = 3,129,447.15

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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.