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Finding the Fourth Proportional to 11,634.57, 16,048.86 and 7,320.80

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Solution

The fourth proportional to 11,634.57, 16,048.86 and 7,320.80 is: 10,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,634.57 : 16,048.86 = 7,320.80 : x
  2. Step 2: Convert to fraction form
    11,634.57/16,048.86 = 7,320.80/x
  3. Step 3: Cross multiply
    11,634.57x = 16,048.86 × 7,320.80
  4. Step 4: Simplify right side
    11,634.57x = 117,490,494.29
  5. Step 5: Solve for x
    x = 117,490,494.29/11,634.57
  6. Step 6: Final answer
    x = 10,098.40

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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.