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Finding the Fourth Proportional to 19,798,786.80, 29,656,189.80 and 16,439,554.80

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Solution

The fourth proportional to 19,798,786.80, 29,656,189.80 and 16,439,554.80 is: 24,624,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,798,786.80 : 29,656,189.80 = 16,439,554.80 : x
  2. Step 2: Convert to fraction form
    19,798,786.80/29,656,189.80 = 16,439,554.80/x
  3. Step 3: Cross multiply
    19,798,786.80x = 29,656,189.80 × 16,439,554.80
  4. Step 4: Simplify right side
    19,798,786.80x = 487,534,557,376,301.06
  5. Step 5: Solve for x
    x = 487,534,557,376,301.06/19,798,786.80
  6. Step 6: Final answer
    x = 24,624,466.25

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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.