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Finding the Fourth Proportional to 53,803.88, 80,718.78 and 16,867.88

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Solution

The fourth proportional to 53,803.88, 80,718.78 and 16,867.88 is: 25,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,803.88 : 80,718.78 = 16,867.88 : x
  2. Step 2: Convert to fraction form
    53,803.88/80,718.78 = 16,867.88/x
  3. Step 3: Cross multiply
    53,803.88x = 80,718.78 × 16,867.88
  4. Step 4: Simplify right side
    53,803.88x = 1,361,554,291.19
  5. Step 5: Solve for x
    x = 1,361,554,291.19/53,803.88
  6. Step 6: Final answer
    x = 25,305.88

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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.