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Finding the Fourth Proportional to 39,765,603.40, 59,647,805.80 and 17,890,534.42

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Solution

The fourth proportional to 39,765,603.40, 59,647,805.80 and 17,890,534.42 is: 26,835,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765,603.40 : 59,647,805.80 = 17,890,534.42 : x
  2. Step 2: Convert to fraction form
    39,765,603.40/59,647,805.80 = 17,890,534.42/x
  3. Step 3: Cross multiply
    39,765,603.40x = 59,647,805.80 × 17,890,534.42
  4. Step 4: Simplify right side
    39,765,603.40x = 1,067,131,122,742,375.75
  5. Step 5: Solve for x
    x = 1,067,131,122,742,375.75/39,765,603.40
  6. Step 6: Final answer
    x = 26,835,532.01

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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.