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Finding the Fourth Proportional to 26,641,915.10, 39,978,815.64 and 11,495,846.60

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Solution

The fourth proportional to 26,641,915.10, 39,978,815.64 and 11,495,846.60 is: 17,250,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,641,915.10 : 39,978,815.64 = 11,495,846.60 : x
  2. Step 2: Convert to fraction form
    26,641,915.10/39,978,815.64 = 11,495,846.60/x
  3. Step 3: Cross multiply
    26,641,915.10x = 39,978,815.64 × 11,495,846.60
  4. Step 4: Simplify right side
    26,641,915.10x = 459,590,331,847,120.81
  5. Step 5: Solve for x
    x = 459,590,331,847,120.81/26,641,915.10
  6. Step 6: Final answer
    x = 17,250,649.22

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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.