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Finding the Fourth Proportional to 32,867,969.40, 49,207,475.70 and 20,113,385.40

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Solution

The fourth proportional to 32,867,969.40, 49,207,475.70 and 20,113,385.40 is: 30,112,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,867,969.40 : 49,207,475.70 = 20,113,385.40 : x
  2. Step 2: Convert to fraction form
    32,867,969.40/49,207,475.70 = 20,113,385.40/x
  3. Step 3: Cross multiply
    32,867,969.40x = 49,207,475.70 × 20,113,385.40
  4. Step 4: Simplify right side
    32,867,969.40x = 989,728,923,315,234.75
  5. Step 5: Solve for x
    x = 989,728,923,315,234.75/32,867,969.40
  6. Step 6: Final answer
    x = 30,112,262.53

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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.