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Finding the Fourth Proportional to 25,927.76, 38,894.52 and 8,394.32

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Solution

The fourth proportional to 25,927.76, 38,894.52 and 8,394.32 is: 12,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,927.76 : 38,894.52 = 8,394.32 : x
  2. Step 2: Convert to fraction form
    25,927.76/38,894.52 = 8,394.32/x
  3. Step 3: Cross multiply
    25,927.76x = 38,894.52 × 8,394.32
  4. Step 4: Simplify right side
    25,927.76x = 326,493,047.13
  5. Step 5: Solve for x
    x = 326,493,047.13/25,927.76
  6. Step 6: Final answer
    x = 12,592.41

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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.