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Finding the Fourth Proportional to 6,109,751.76, 8,430,520.60 and 3,530,934.76

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Solution

The fourth proportional to 6,109,751.76, 8,430,520.60 and 3,530,934.76 is: 4,872,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,109,751.76 : 8,430,520.60 = 3,530,934.76 : x
  2. Step 2: Convert to fraction form
    6,109,751.76/8,430,520.60 = 3,530,934.76/x
  3. Step 3: Cross multiply
    6,109,751.76x = 8,430,520.60 × 3,530,934.76
  4. Step 4: Simplify right side
    6,109,751.76x = 29,767,618,231,436.05
  5. Step 5: Solve for x
    x = 29,767,618,231,436.05/6,109,751.76
  6. Step 6: Final answer
    x = 4,872,148.56

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1.5x scale

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.