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Finding the Fourth Proportional to 6,554,447.79, 9,831,702.80 and 2,005,489.34

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Solution

The fourth proportional to 6,554,447.79, 9,831,702.80 and 2,005,489.34 is: 3,008,243.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,554,447.79 : 9,831,702.80 = 2,005,489.34 : x
  2. Step 2: Convert to fraction form
    6,554,447.79/9,831,702.80 = 2,005,489.34/x
  3. Step 3: Cross multiply
    6,554,447.79x = 9,831,702.80 × 2,005,489.34
  4. Step 4: Simplify right side
    6,554,447.79x = 19,717,375,100,262.19
  5. Step 5: Solve for x
    x = 19,717,375,100,262.19/6,554,447.79
  6. Step 6: Final answer
    x = 3,008,243.52

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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.