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Finding the Fourth Proportional to 6,347,743.47, 8,759,887.71 and 3,447,133.58

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Solution

The fourth proportional to 6,347,743.47, 8,759,887.71 and 3,447,133.58 is: 4,757,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347,743.47 : 8,759,887.71 = 3,447,133.58 : x
  2. Step 2: Convert to fraction form
    6,347,743.47/8,759,887.71 = 3,447,133.58/x
  3. Step 3: Cross multiply
    6,347,743.47x = 8,759,887.71 × 3,447,133.58
  4. Step 4: Simplify right side
    6,347,743.47x = 30,196,503,082,170.30
  5. Step 5: Solve for x
    x = 30,196,503,082,170.30/6,347,743.47
  6. Step 6: Final answer
    x = 4,757,045.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.