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Finding the Fourth Proportional to 10,992,652.40, 16,488,978.60 and 8,158,300.40

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Solution

The fourth proportional to 10,992,652.40, 16,488,978.60 and 8,158,300.40 is: 12,237,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992,652.40 : 16,488,978.60 = 8,158,300.40 : x
  2. Step 2: Convert to fraction form
    10,992,652.40/16,488,978.60 = 8,158,300.40/x
  3. Step 3: Cross multiply
    10,992,652.40x = 16,488,978.60 × 8,158,300.40
  4. Step 4: Simplify right side
    10,992,652.40x = 134,522,040,707,971.44
  5. Step 5: Solve for x
    x = 134,522,040,707,971.44/10,992,652.40
  6. Step 6: Final answer
    x = 12,237,450.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.