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Finding the Fourth Proportional to 9,672,274.88, 13,347,738.88 and 5,321,267.78

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Solution

The fourth proportional to 9,672,274.88, 13,347,738.88 and 5,321,267.78 is: 7,343,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,672,274.88 : 13,347,738.88 = 5,321,267.78 : x
  2. Step 2: Convert to fraction form
    9,672,274.88/13,347,738.88 = 5,321,267.78/x
  3. Step 3: Cross multiply
    9,672,274.88x = 13,347,738.88 × 5,321,267.78
  4. Step 4: Simplify right side
    9,672,274.88x = 71,026,892,757,955.42
  5. Step 5: Solve for x
    x = 71,026,892,757,955.42/9,672,274.88
  6. Step 6: Final answer
    x = 7,343,349.28

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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.