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Finding the Fourth Proportional to 6,899,269.62, 9,452,033.64 and 6,640,688.46

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Solution

The fourth proportional to 6,899,269.62, 9,452,033.64 and 6,640,688.46 is: 9,097,776.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899,269.62 : 9,452,033.64 = 6,640,688.46 : x
  2. Step 2: Convert to fraction form
    6,899,269.62/9,452,033.64 = 6,640,688.46/x
  3. Step 3: Cross multiply
    6,899,269.62x = 9,452,033.64 × 6,640,688.46
  4. Step 4: Simplify right side
    6,899,269.62x = 62,768,010,716,679.80
  5. Step 5: Solve for x
    x = 62,768,010,716,679.80/6,899,269.62
  6. Step 6: Final answer
    x = 9,097,776.17

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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.