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Finding the Fourth Proportional to 25,458.54, 38,184.98 and 7,926.90

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Solution

The fourth proportional to 25,458.54, 38,184.98 and 7,926.90 is: 11,889.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.54 : 38,184.98 = 7,926.90 : x
  2. Step 2: Convert to fraction form
    25,458.54/38,184.98 = 7,926.90/x
  3. Step 3: Cross multiply
    25,458.54x = 38,184.98 × 7,926.90
  4. Step 4: Simplify right side
    25,458.54x = 302,688,517.96
  5. Step 5: Solve for x
    x = 302,688,517.96/25,458.54
  6. Step 6: Final answer
    x = 11,889.47

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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.