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Finding the Fourth Proportional to 52,662.18, 79,020 and 30,495.72

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Solution

The fourth proportional to 52,662.18, 79,020 and 30,495.72 is: 45,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,662.18 : 79,020 = 30,495.72 : x
  2. Step 2: Convert to fraction form
    52,662.18/79,020 = 30,495.72/x
  3. Step 3: Cross multiply
    52,662.18x = 79,020 × 30,495.72
  4. Step 4: Simplify right side
    52,662.18x = 2,409,771,794.40
  5. Step 5: Solve for x
    x = 2,409,771,794.40/52,662.18
  6. Step 6: Final answer
    x = 45,759.06

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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.