Home / 53,084.50-79,627.35-13,640.54

Finding the Fourth Proportional to 53,084.50, 79,627.35 and 13,640.54

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Solution

The fourth proportional to 53,084.50, 79,627.35 and 13,640.54 is: 20,460.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,084.50 : 79,627.35 = 13,640.54 : x
  2. Step 2: Convert to fraction form
    53,084.50/79,627.35 = 13,640.54/x
  3. Step 3: Cross multiply
    53,084.50x = 79,627.35 × 13,640.54
  4. Step 4: Simplify right side
    53,084.50x = 1,086,159,705.78
  5. Step 5: Solve for x
    x = 1,086,159,705.78/53,084.50
  6. Step 6: Final answer
    x = 20,460.96

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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.