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Finding the Fourth Proportional to 33,808.80, 50,713.20 and 31,281.60

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Solution

The fourth proportional to 33,808.80, 50,713.20 and 31,281.60 is: 46,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,808.80 : 50,713.20 = 31,281.60 : x
  2. Step 2: Convert to fraction form
    33,808.80/50,713.20 = 31,281.60/x
  3. Step 3: Cross multiply
    33,808.80x = 50,713.20 × 31,281.60
  4. Step 4: Simplify right side
    33,808.80x = 1,586,390,037.12
  5. Step 5: Solve for x
    x = 1,586,390,037.12/33,808.80
  6. Step 6: Final answer
    x = 46,922.40

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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.