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Finding the Fourth Proportional to 61,907.55, 85,432.76 and 36,414.96

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Solution

The fourth proportional to 61,907.55, 85,432.76 and 36,414.96 is: 50,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,907.55 : 85,432.76 = 36,414.96 : x
  2. Step 2: Convert to fraction form
    61,907.55/85,432.76 = 36,414.96/x
  3. Step 3: Cross multiply
    61,907.55x = 85,432.76 × 36,414.96
  4. Step 4: Simplify right side
    61,907.55x = 3,111,030,538.09
  5. Step 5: Solve for x
    x = 3,111,030,538.09/61,907.55
  6. Step 6: Final answer
    x = 50,252.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.