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Finding the Fourth Proportional to 31,651.68, 47,484.72 and 16,852.80

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Solution

The fourth proportional to 31,651.68, 47,484.72 and 16,852.80 is: 25,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,651.68 : 47,484.72 = 16,852.80 : x
  2. Step 2: Convert to fraction form
    31,651.68/47,484.72 = 16,852.80/x
  3. Step 3: Cross multiply
    31,651.68x = 47,484.72 × 16,852.80
  4. Step 4: Simplify right side
    31,651.68x = 800,250,489.22
  5. Step 5: Solve for x
    x = 800,250,489.22/31,651.68
  6. Step 6: Final answer
    x = 25,283.03

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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.