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Finding the Fourth Proportional to 8,986.95, 12,401.96 and 5,008.41

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Solution

The fourth proportional to 8,986.95, 12,401.96 and 5,008.41 is: 6,911.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.95 : 12,401.96 = 5,008.41 : x
  2. Step 2: Convert to fraction form
    8,986.95/12,401.96 = 5,008.41/x
  3. Step 3: Cross multiply
    8,986.95x = 12,401.96 × 5,008.41
  4. Step 4: Simplify right side
    8,986.95x = 62,114,075.44
  5. Step 5: Solve for x
    x = 62,114,075.44/8,986.95
  6. Step 6: Final answer
    x = 6,911.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.