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Finding the Fourth Proportional to 25,970.63, 38,965.66 and 13,482.86

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Solution

The fourth proportional to 25,970.63, 38,965.66 and 13,482.86 is: 20,229.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,970.63 : 38,965.66 = 13,482.86 : x
  2. Step 2: Convert to fraction form
    25,970.63/38,965.66 = 13,482.86/x
  3. Step 3: Cross multiply
    25,970.63x = 38,965.66 × 13,482.86
  4. Step 4: Simplify right side
    25,970.63x = 525,368,310.05
  5. Step 5: Solve for x
    x = 525,368,310.05/25,970.63
  6. Step 6: Final answer
    x = 20,229.33

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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.