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Finding the Fourth Proportional to 12,033.63, 16,603.02 and 7,187.79

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Solution

The fourth proportional to 12,033.63, 16,603.02 and 7,187.79 is: 9,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,033.63 : 16,603.02 = 7,187.79 : x
  2. Step 2: Convert to fraction form
    12,033.63/16,603.02 = 7,187.79/x
  3. Step 3: Cross multiply
    12,033.63x = 16,603.02 × 7,187.79
  4. Step 4: Simplify right side
    12,033.63x = 119,339,021.13
  5. Step 5: Solve for x
    x = 119,339,021.13/12,033.63
  6. Step 6: Final answer
    x = 9,917.13

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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.