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Finding the Fourth Proportional to 7,226,396.88, 9,947,393.52 and 6,245,885.52

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Solution

The fourth proportional to 7,226,396.88, 9,947,393.52 and 6,245,885.52 is: 8,597,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,226,396.88 : 9,947,393.52 = 6,245,885.52 : x
  2. Step 2: Convert to fraction form
    7,226,396.88/9,947,393.52 = 6,245,885.52/x
  3. Step 3: Cross multiply
    7,226,396.88x = 9,947,393.52 × 6,245,885.52
  4. Step 4: Simplify right side
    7,226,396.88x = 62,130,281,148,309.82
  5. Step 5: Solve for x
    x = 62,130,281,148,309.82/7,226,396.88
  6. Step 6: Final answer
    x = 8,597,684.60

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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.