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Finding the Fourth Proportional to 6,899,270.62, 9,452,035.01 and 6,640,689.46

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Solution

The fourth proportional to 6,899,270.62, 9,452,035.01 and 6,640,689.46 is: 9,097,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899,270.62 : 9,452,035.01 = 6,640,689.46 : x
  2. Step 2: Convert to fraction form
    6,899,270.62/9,452,035.01 = 6,640,689.46/x
  3. Step 3: Cross multiply
    6,899,270.62x = 9,452,035.01 × 6,640,689.46
  4. Step 4: Simplify right side
    6,899,270.62x = 62,768,029,266,457.99
  5. Step 5: Solve for x
    x = 62,768,029,266,457.99/6,899,270.62
  6. Step 6: Final answer
    x = 9,097,777.54

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.