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Finding the Fourth Proportional to 25,212.80, 37,808.04 and 9,619.52

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Solution

The fourth proportional to 25,212.80, 37,808.04 and 9,619.52 is: 14,425.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,212.80 : 37,808.04 = 9,619.52 : x
  2. Step 2: Convert to fraction form
    25,212.80/37,808.04 = 9,619.52/x
  3. Step 3: Cross multiply
    25,212.80x = 37,808.04 × 9,619.52
  4. Step 4: Simplify right side
    25,212.80x = 363,695,196.94
  5. Step 5: Solve for x
    x = 363,695,196.94/25,212.80
  6. Step 6: Final answer
    x = 14,425.02

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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.