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Finding the Fourth Proportional to 50,955.40, 76,443.90 and 15,413.80

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Solution

The fourth proportional to 50,955.40, 76,443.90 and 15,413.80 is: 23,123.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,955.40 : 76,443.90 = 15,413.80 : x
  2. Step 2: Convert to fraction form
    50,955.40/76,443.90 = 15,413.80/x
  3. Step 3: Cross multiply
    50,955.40x = 76,443.90 × 15,413.80
  4. Step 4: Simplify right side
    50,955.40x = 1,178,290,985.82
  5. Step 5: Solve for x
    x = 1,178,290,985.82/50,955.40
  6. Step 6: Final answer
    x = 23,123.97

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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.