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Finding the Fourth Proportional to 3,296.76, 4,548.87 and 1,971.06

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Solution

The fourth proportional to 3,296.76, 4,548.87 and 1,971.06 is: 2,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,296.76 : 4,548.87 = 1,971.06 : x
  2. Step 2: Convert to fraction form
    3,296.76/4,548.87 = 1,971.06/x
  3. Step 3: Cross multiply
    3,296.76x = 4,548.87 × 1,971.06
  4. Step 4: Simplify right side
    3,296.76x = 8,966,095.70
  5. Step 5: Solve for x
    x = 8,966,095.70/3,296.76
  6. Step 6: Final answer
    x = 2,719.67

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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.