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Finding the Fourth Proportional to 62,448.40, 93,680.70 and 30,874.60

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Solution

The fourth proportional to 62,448.40, 93,680.70 and 30,874.60 is: 46,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,448.40 : 93,680.70 = 30,874.60 : x
  2. Step 2: Convert to fraction form
    62,448.40/93,680.70 = 30,874.60/x
  3. Step 3: Cross multiply
    62,448.40x = 93,680.70 × 30,874.60
  4. Step 4: Simplify right side
    62,448.40x = 2,892,354,140.22
  5. Step 5: Solve for x
    x = 2,892,354,140.22/62,448.40
  6. Step 6: Final answer
    x = 46,315.90

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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.