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Finding the Fourth Proportional to 12,137.53, 16,751.06 and 7,424.95

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Solution

The fourth proportional to 12,137.53, 16,751.06 and 7,424.95 is: 10,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.53 : 16,751.06 = 7,424.95 : x
  2. Step 2: Convert to fraction form
    12,137.53/16,751.06 = 7,424.95/x
  3. Step 3: Cross multiply
    12,137.53x = 16,751.06 × 7,424.95
  4. Step 4: Simplify right side
    12,137.53x = 124,375,782.95
  5. Step 5: Solve for x
    x = 124,375,782.95/12,137.53
  6. Step 6: Final answer
    x = 10,247.21

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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.