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Finding the Fourth Proportional to 53,911.20, 80,866.80 and 16,471.20

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Solution

The fourth proportional to 53,911.20, 80,866.80 and 16,471.20 is: 24,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,911.20 : 80,866.80 = 16,471.20 : x
  2. Step 2: Convert to fraction form
    53,911.20/80,866.80 = 16,471.20/x
  3. Step 3: Cross multiply
    53,911.20x = 80,866.80 × 16,471.20
  4. Step 4: Simplify right side
    53,911.20x = 1,331,973,236.16
  5. Step 5: Solve for x
    x = 1,331,973,236.16/53,911.20
  6. Step 6: Final answer
    x = 24,706.80

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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.