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Finding the Fourth Proportional to 52,525.65, 78,793.37 and 20,928.09

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Solution

The fourth proportional to 52,525.65, 78,793.37 and 20,928.09 is: 31,394.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,525.65 : 78,793.37 = 20,928.09 : x
  2. Step 2: Convert to fraction form
    52,525.65/78,793.37 = 20,928.09/x
  3. Step 3: Cross multiply
    52,525.65x = 78,793.37 × 20,928.09
  4. Step 4: Simplify right side
    52,525.65x = 1,648,994,634.12
  5. Step 5: Solve for x
    x = 1,648,994,634.12/52,525.65
  6. Step 6: Final answer
    x = 31,394.08

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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.