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Finding the Fourth Proportional to 25,605.98, 38,408.93 and 10,012.67

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Solution

The fourth proportional to 25,605.98, 38,408.93 and 10,012.67 is: 15,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,605.98 : 38,408.93 = 10,012.67 : x
  2. Step 2: Convert to fraction form
    25,605.98/38,408.93 = 10,012.67/x
  3. Step 3: Cross multiply
    25,605.98x = 38,408.93 × 10,012.67
  4. Step 4: Simplify right side
    25,605.98x = 384,575,891.08
  5. Step 5: Solve for x
    x = 384,575,891.08/25,605.98
  6. Step 6: Final answer
    x = 15,018.99

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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.