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Finding the Fourth Proportional to 51,618.60, 77,375.60 and 34,980.30

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Solution

The fourth proportional to 51,618.60, 77,375.60 and 34,980.30 is: 52,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,618.60 : 77,375.60 = 34,980.30 : x
  2. Step 2: Convert to fraction form
    51,618.60/77,375.60 = 34,980.30/x
  3. Step 3: Cross multiply
    51,618.60x = 77,375.60 × 34,980.30
  4. Step 4: Simplify right side
    51,618.60x = 2,706,621,700.68
  5. Step 5: Solve for x
    x = 2,706,621,700.68/51,618.60
  6. Step 6: Final answer
    x = 52,435.01

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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.