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Finding the Fourth Proportional to 57,804.67, 86,713.95 and 20,357.00

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Solution

The fourth proportional to 57,804.67, 86,713.95 and 20,357.00 is: 30,537.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,804.67 : 86,713.95 = 20,357.00 : x
  2. Step 2: Convert to fraction form
    57,804.67/86,713.95 = 20,357.00/x
  3. Step 3: Cross multiply
    57,804.67x = 86,713.95 × 20,357.00
  4. Step 4: Simplify right side
    57,804.67x = 1,765,235,344.80
  5. Step 5: Solve for x
    x = 1,765,235,344.80/57,804.67
  6. Step 6: Final answer
    x = 30,537.94

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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.