Home / 53,819.29-80,685.19-18,783.55

Finding the Fourth Proportional to 53,819.29, 80,685.19 and 18,783.55

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Solution

The fourth proportional to 53,819.29, 80,685.19 and 18,783.55 is: 28,160.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,819.29 : 80,685.19 = 18,783.55 : x
  2. Step 2: Convert to fraction form
    53,819.29/80,685.19 = 18,783.55/x
  3. Step 3: Cross multiply
    53,819.29x = 80,685.19 × 18,783.55
  4. Step 4: Simplify right side
    53,819.29x = 1,515,554,300.62
  5. Step 5: Solve for x
    x = 1,515,554,300.62/53,819.29
  6. Step 6: Final answer
    x = 28,160.06

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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.