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Finding the Fourth Proportional to 46,347.88, 69,539.22 and 21,399.88

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Solution

The fourth proportional to 46,347.88, 69,539.22 and 21,399.88 is: 32,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,347.88 : 69,539.22 = 21,399.88 : x
  2. Step 2: Convert to fraction form
    46,347.88/69,539.22 = 21,399.88/x
  3. Step 3: Cross multiply
    46,347.88x = 69,539.22 × 21,399.88
  4. Step 4: Simplify right side
    46,347.88x = 1,488,130,963.29
  5. Step 5: Solve for x
    x = 1,488,130,963.29/46,347.88
  6. Step 6: Final answer
    x = 32,107.85

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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.