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Finding the Fourth Proportional to 15,976.79, 22,048.06 and 9,266.40

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Solution

The fourth proportional to 15,976.79, 22,048.06 and 9,266.40 is: 12,787.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,976.79 : 22,048.06 = 9,266.40 : x
  2. Step 2: Convert to fraction form
    15,976.79/22,048.06 = 9,266.40/x
  3. Step 3: Cross multiply
    15,976.79x = 22,048.06 × 9,266.40
  4. Step 4: Simplify right side
    15,976.79x = 204,306,032.94
  5. Step 5: Solve for x
    x = 204,306,032.94/15,976.79
  6. Step 6: Final answer
    x = 12,787.68

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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.