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Finding the Fourth Proportional to 53,859.41, 80,789.15 and 14,415.48

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Solution

The fourth proportional to 53,859.41, 80,789.15 and 14,415.48 is: 21,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,859.41 : 80,789.15 = 14,415.48 : x
  2. Step 2: Convert to fraction form
    53,859.41/80,789.15 = 14,415.48/x
  3. Step 3: Cross multiply
    53,859.41x = 80,789.15 × 14,415.48
  4. Step 4: Simplify right side
    53,859.41x = 1,164,614,303.96
  5. Step 5: Solve for x
    x = 1,164,614,303.96/53,859.41
  6. Step 6: Final answer
    x = 21,623.23

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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.