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Finding the Fourth Proportional to 62,495.20, 93,742.80 and 20,942.20

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Solution

The fourth proportional to 62,495.20, 93,742.80 and 20,942.20 is: 31,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,495.20 : 93,742.80 = 20,942.20 : x
  2. Step 2: Convert to fraction form
    62,495.20/93,742.80 = 20,942.20/x
  3. Step 3: Cross multiply
    62,495.20x = 93,742.80 × 20,942.20
  4. Step 4: Simplify right side
    62,495.20x = 1,963,180,466.16
  5. Step 5: Solve for x
    x = 1,963,180,466.16/62,495.20
  6. Step 6: Final answer
    x = 31,413.30

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1.5x scale

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.