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Finding the Fourth Proportional to 6,377,586.72, 9,566,414.64 and 1,889,901.60

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Solution

The fourth proportional to 6,377,586.72, 9,566,414.64 and 1,889,901.60 is: 2,834,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,377,586.72 : 9,566,414.64 = 1,889,901.60 : x
  2. Step 2: Convert to fraction form
    6,377,586.72/9,566,414.64 = 1,889,901.60/x
  3. Step 3: Cross multiply
    6,377,586.72x = 9,566,414.64 × 1,889,901.60
  4. Step 4: Simplify right side
    6,377,586.72x = 18,079,582,334,399.43
  5. Step 5: Solve for x
    x = 18,079,582,334,399.43/6,377,586.72
  6. Step 6: Final answer
    x = 2,834,862.64

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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.