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Finding the Fourth Proportional to 74,627.76, 102,986.40 and 41,093.76

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Solution

The fourth proportional to 74,627.76, 102,986.40 and 41,093.76 is: 56,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,627.76 : 102,986.40 = 41,093.76 : x
  2. Step 2: Convert to fraction form
    74,627.76/102,986.40 = 41,093.76/x
  3. Step 3: Cross multiply
    74,627.76x = 102,986.40 × 41,093.76
  4. Step 4: Simplify right side
    74,627.76x = 4,232,098,404.86
  5. Step 5: Solve for x
    x = 4,232,098,404.86/74,627.76
  6. Step 6: Final answer
    x = 56,709.44

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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.