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Finding the Fourth Proportional to 25,925.76, 38,891.52 and 8,392.32

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Solution

The fourth proportional to 25,925.76, 38,891.52 and 8,392.32 is: 12,589.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,925.76 : 38,891.52 = 8,392.32 : x
  2. Step 2: Convert to fraction form
    25,925.76/38,891.52 = 8,392.32/x
  3. Step 3: Cross multiply
    25,925.76x = 38,891.52 × 8,392.32
  4. Step 4: Simplify right side
    25,925.76x = 326,390,081.13
  5. Step 5: Solve for x
    x = 326,390,081.13/25,925.76
  6. Step 6: Final answer
    x = 12,589.41

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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.