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Finding the Fourth Proportional to 19,046.54, 28,569.81 and 8,651

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Solution

The fourth proportional to 19,046.54, 28,569.81 and 8,651 is: 12,976.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,046.54 : 28,569.81 = 8,651 : x
  2. Step 2: Convert to fraction form
    19,046.54/28,569.81 = 8,651/x
  3. Step 3: Cross multiply
    19,046.54x = 28,569.81 × 8,651
  4. Step 4: Simplify right side
    19,046.54x = 247,157,426.31
  5. Step 5: Solve for x
    x = 247,157,426.31/19,046.54
  6. Step 6: Final answer
    x = 12,976.50

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.