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Finding the Fourth Proportional to 11,859.76, 17,787.34 and 5,532.88

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Solution

The fourth proportional to 11,859.76, 17,787.34 and 5,532.88 is: 8,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.76 : 17,787.34 = 5,532.88 : x
  2. Step 2: Convert to fraction form
    11,859.76/17,787.34 = 5,532.88/x
  3. Step 3: Cross multiply
    11,859.76x = 17,787.34 × 5,532.88
  4. Step 4: Simplify right side
    11,859.76x = 98,415,217.74
  5. Step 5: Solve for x
    x = 98,415,217.74/11,859.76
  6. Step 6: Final answer
    x = 8,298.25

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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.