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Finding the Fourth Proportional to 11,580.75, 17,371.06 and 2,815.68

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Solution

The fourth proportional to 11,580.75, 17,371.06 and 2,815.68 is: 4,223.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.75 : 17,371.06 = 2,815.68 : x
  2. Step 2: Convert to fraction form
    11,580.75/17,371.06 = 2,815.68/x
  3. Step 3: Cross multiply
    11,580.75x = 17,371.06 × 2,815.68
  4. Step 4: Simplify right side
    11,580.75x = 48,911,346.22
  5. Step 5: Solve for x
    x = 48,911,346.22/11,580.75
  6. Step 6: Final answer
    x = 4,223.50

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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.