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Finding the Fourth Proportional to 25,886.60, 38,821.47 and 8,352.33

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Solution

The fourth proportional to 25,886.60, 38,821.47 and 8,352.33 is: 12,525.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.60 : 38,821.47 = 8,352.33 : x
  2. Step 2: Convert to fraction form
    25,886.60/38,821.47 = 8,352.33/x
  3. Step 3: Cross multiply
    25,886.60x = 38,821.47 × 8,352.33
  4. Step 4: Simplify right side
    25,886.60x = 324,249,728.53
  5. Step 5: Solve for x
    x = 324,249,728.53/25,886.60
  6. Step 6: Final answer
    x = 12,525.78

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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.