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Finding the Fourth Proportional to 39,855,640.80, 59,793,958.80 and 14,293,984.80

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Solution

The fourth proportional to 39,855,640.80, 59,793,958.80 and 14,293,984.80 is: 21,444,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855,640.80 : 59,793,958.80 = 14,293,984.80 : x
  2. Step 2: Convert to fraction form
    39,855,640.80/59,793,958.80 = 14,293,984.80/x
  3. Step 3: Cross multiply
    39,855,640.80x = 59,793,958.80 × 14,293,984.80
  4. Step 4: Simplify right side
    39,855,640.80x = 854,693,938,219,026.25
  5. Step 5: Solve for x
    x = 854,693,938,219,026.25/39,855,640.80
  6. Step 6: Final answer
    x = 21,444,742.10

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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.