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Finding the Fourth Proportional to 62,181.60, 93,272.40 and 20,628.60

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Solution

The fourth proportional to 62,181.60, 93,272.40 and 20,628.60 is: 30,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,181.60 : 93,272.40 = 20,628.60 : x
  2. Step 2: Convert to fraction form
    62,181.60/93,272.40 = 20,628.60/x
  3. Step 3: Cross multiply
    62,181.60x = 93,272.40 × 20,628.60
  4. Step 4: Simplify right side
    62,181.60x = 1,924,079,030.64
  5. Step 5: Solve for x
    x = 1,924,079,030.64/62,181.60
  6. Step 6: Final answer
    x = 30,942.90

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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.