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Finding the Fourth Proportional to 6,446,892.94, 9,668,254.47 and 2,127,972.94

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Solution

The fourth proportional to 6,446,892.94, 9,668,254.47 and 2,127,972.94 is: 3,191,271.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446,892.94 : 9,668,254.47 = 2,127,972.94 : x
  2. Step 2: Convert to fraction form
    6,446,892.94/9,668,254.47 = 2,127,972.94/x
  3. Step 3: Cross multiply
    6,446,892.94x = 9,668,254.47 × 2,127,972.94
  4. Step 4: Simplify right side
    6,446,892.94x = 20,573,783,889,194.04
  5. Step 5: Solve for x
    x = 20,573,783,889,194.04/6,446,892.94
  6. Step 6: Final answer
    x = 3,191,271.22

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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.