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Finding the Fourth Proportional to 53,863.80, 80,807.34 and 16,422.90

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Solution

The fourth proportional to 53,863.80, 80,807.34 and 16,422.90 is: 24,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,863.80 : 80,807.34 = 16,422.90 : x
  2. Step 2: Convert to fraction form
    53,863.80/80,807.34 = 16,422.90/x
  3. Step 3: Cross multiply
    53,863.80x = 80,807.34 × 16,422.90
  4. Step 4: Simplify right side
    53,863.80x = 1,327,090,864.09
  5. Step 5: Solve for x
    x = 1,327,090,864.09/53,863.80
  6. Step 6: Final answer
    x = 24,637.90

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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.