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Finding the Fourth Proportional to 12,046.88, 16,623.54 and 7,509.12

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Solution

The fourth proportional to 12,046.88, 16,623.54 and 7,509.12 is: 10,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,046.88 : 16,623.54 = 7,509.12 : x
  2. Step 2: Convert to fraction form
    12,046.88/16,623.54 = 7,509.12/x
  3. Step 3: Cross multiply
    12,046.88x = 16,623.54 × 7,509.12
  4. Step 4: Simplify right side
    12,046.88x = 124,828,156.68
  5. Step 5: Solve for x
    x = 124,828,156.68/12,046.88
  6. Step 6: Final answer
    x = 10,361.87

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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.