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Finding the Fourth Proportional to 61,900.43, 85,427.88 and 35,047.67

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Solution

The fourth proportional to 61,900.43, 85,427.88 and 35,047.67 is: 48,368.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.43 : 85,427.88 = 35,047.67 : x
  2. Step 2: Convert to fraction form
    61,900.43/85,427.88 = 35,047.67/x
  3. Step 3: Cross multiply
    61,900.43x = 85,427.88 × 35,047.67
  4. Step 4: Simplify right side
    61,900.43x = 2,994,048,147.04
  5. Step 5: Solve for x
    x = 2,994,048,147.04/61,900.43
  6. Step 6: Final answer
    x = 48,368.78

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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.