Home / 53,818.29-80,683.70-18,782.55

Finding the Fourth Proportional to 53,818.29, 80,683.70 and 18,782.55

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Solution

The fourth proportional to 53,818.29, 80,683.70 and 18,782.55 is: 28,158.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,818.29 : 80,683.70 = 18,782.55 : x
  2. Step 2: Convert to fraction form
    53,818.29/80,683.70 = 18,782.55/x
  3. Step 3: Cross multiply
    53,818.29x = 80,683.70 × 18,782.55
  4. Step 4: Simplify right side
    53,818.29x = 1,515,445,535.52
  5. Step 5: Solve for x
    x = 1,515,445,535.52/53,818.29
  6. Step 6: Final answer
    x = 28,158.56

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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.