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Finding the Fourth Proportional to 26,641,549.60, 39,962,324.40 and 18,032,205.40

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Solution

The fourth proportional to 26,641,549.60, 39,962,324.40 and 18,032,205.40 is: 27,048,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,641,549.60 : 39,962,324.40 = 18,032,205.40 : x
  2. Step 2: Convert to fraction form
    26,641,549.60/39,962,324.40 = 18,032,205.40/x
  3. Step 3: Cross multiply
    26,641,549.60x = 39,962,324.40 × 18,032,205.40
  4. Step 4: Simplify right side
    26,641,549.60x = 720,608,841,842,231.62
  5. Step 5: Solve for x
    x = 720,608,841,842,231.62/26,641,549.60
  6. Step 6: Final answer
    x = 27,048,308.10

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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.