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Finding the Fourth Proportional to 12,063.21, 16,647.24 and 7,347.51

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Solution

The fourth proportional to 12,063.21, 16,647.24 and 7,347.51 is: 10,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,063.21 : 16,647.24 = 7,347.51 : x
  2. Step 2: Convert to fraction form
    12,063.21/16,647.24 = 7,347.51/x
  3. Step 3: Cross multiply
    12,063.21x = 16,647.24 × 7,347.51
  4. Step 4: Simplify right side
    12,063.21x = 122,315,762.37
  5. Step 5: Solve for x
    x = 122,315,762.37/12,063.21
  6. Step 6: Final answer
    x = 10,139.57

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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.