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Finding the Fourth Proportional to 7,907,765.79, 10,912,598.60 and 4,469,886.03

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Solution

The fourth proportional to 7,907,765.79, 10,912,598.60 and 4,469,886.03 is: 6,168,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907,765.79 : 10,912,598.60 = 4,469,886.03 : x
  2. Step 2: Convert to fraction form
    7,907,765.79/10,912,598.60 = 4,469,886.03/x
  3. Step 3: Cross multiply
    7,907,765.79x = 10,912,598.60 × 4,469,886.03
  4. Step 4: Simplify right side
    7,907,765.79x = 48,778,072,010,788.13
  5. Step 5: Solve for x
    x = 48,778,072,010,788.13/7,907,765.79
  6. Step 6: Final answer
    x = 6,168,375.91

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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.