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Finding the Fourth Proportional to 25,808.39, 38,708.94 and 8,275.94

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Solution

The fourth proportional to 25,808.39, 38,708.94 and 8,275.94 is: 12,412.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,808.39 : 38,708.94 = 8,275.94 : x
  2. Step 2: Convert to fraction form
    25,808.39/38,708.94 = 8,275.94/x
  3. Step 3: Cross multiply
    25,808.39x = 38,708.94 × 8,275.94
  4. Step 4: Simplify right side
    25,808.39x = 320,352,992.71
  5. Step 5: Solve for x
    x = 320,352,992.71/25,808.39
  6. Step 6: Final answer
    x = 12,412.74

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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.