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Finding the Fourth Proportional to 61,907.63, 92,862.72 and 20,354.63

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Solution

The fourth proportional to 61,907.63, 92,862.72 and 20,354.63 is: 30,532.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,907.63 : 92,862.72 = 20,354.63 : x
  2. Step 2: Convert to fraction form
    61,907.63/92,862.72 = 20,354.63/x
  3. Step 3: Cross multiply
    61,907.63x = 92,862.72 × 20,354.63
  4. Step 4: Simplify right side
    61,907.63x = 1,890,185,842.08
  5. Step 5: Solve for x
    x = 1,890,185,842.08/61,907.63
  6. Step 6: Final answer
    x = 30,532.36

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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.