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Finding the Fourth Proportional to 46,693.54, 70,040.79 and 13,413.54

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Solution

The fourth proportional to 46,693.54, 70,040.79 and 13,413.54 is: 20,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,693.54 : 70,040.79 = 13,413.54 : x
  2. Step 2: Convert to fraction form
    46,693.54/70,040.79 = 13,413.54/x
  3. Step 3: Cross multiply
    46,693.54x = 70,040.79 × 13,413.54
  4. Step 4: Simplify right side
    46,693.54x = 939,494,938.30
  5. Step 5: Solve for x
    x = 939,494,938.30/46,693.54
  6. Step 6: Final answer
    x = 20,120.45

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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.