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Finding the Fourth Proportional to 10,931,469.80, 16,359,879.90 and 10,035,674.60

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Solution

The fourth proportional to 10,931,469.80, 16,359,879.90 and 10,035,674.60 is: 15,019,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931,469.80 : 16,359,879.90 = 10,035,674.60 : x
  2. Step 2: Convert to fraction form
    10,931,469.80/16,359,879.90 = 10,035,674.60/x
  3. Step 3: Cross multiply
    10,931,469.80x = 16,359,879.90 × 10,035,674.60
  4. Step 4: Simplify right side
    10,931,469.80x = 164,182,431,171,480.53
  5. Step 5: Solve for x
    x = 164,182,431,171,480.53/10,931,469.80
  6. Step 6: Final answer
    x = 15,019,245.74

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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.