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Finding the Fourth Proportional to 12,046.54, 16,616.73 and 7,854.70

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Solution

The fourth proportional to 12,046.54, 16,616.73 and 7,854.70 is: 10,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,046.54 : 16,616.73 = 7,854.70 : x
  2. Step 2: Convert to fraction form
    12,046.54/16,616.73 = 7,854.70/x
  3. Step 3: Cross multiply
    12,046.54x = 16,616.73 × 7,854.70
  4. Step 4: Simplify right side
    12,046.54x = 130,519,429.13
  5. Step 5: Solve for x
    x = 130,519,429.13/12,046.54
  6. Step 6: Final answer
    x = 10,834.60

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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.