Home / 53,919.09-80,889.57-18,883.35

Finding the Fourth Proportional to 53,919.09, 80,889.57 and 18,883.35

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Solution

The fourth proportional to 53,919.09, 80,889.57 and 18,883.35 is: 28,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,919.09 : 80,889.57 = 18,883.35 : x
  2. Step 2: Convert to fraction form
    53,919.09/80,889.57 = 18,883.35/x
  3. Step 3: Cross multiply
    53,919.09x = 80,889.57 × 18,883.35
  4. Step 4: Simplify right side
    53,919.09x = 1,527,466,061.66
  5. Step 5: Solve for x
    x = 1,527,466,061.66/53,919.09
  6. Step 6: Final answer
    x = 28,328.85

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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.