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Finding the Fourth Proportional to 25,992.59, 38,981.94 and 7,271.46

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Solution

The fourth proportional to 25,992.59, 38,981.94 and 7,271.46 is: 10,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,992.59 : 38,981.94 = 7,271.46 : x
  2. Step 2: Convert to fraction form
    25,992.59/38,981.94 = 7,271.46/x
  3. Step 3: Cross multiply
    25,992.59x = 38,981.94 × 7,271.46
  4. Step 4: Simplify right side
    25,992.59x = 283,455,617.43
  5. Step 5: Solve for x
    x = 283,455,617.43/25,992.59
  6. Step 6: Final answer
    x = 10,905.25

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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.