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Finding the Fourth Proportional to 6,511.76, 8,986.26 and 3,527.63

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Solution

The fourth proportional to 6,511.76, 8,986.26 and 3,527.63 is: 4,868.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.76 : 8,986.26 = 3,527.63 : x
  2. Step 2: Convert to fraction form
    6,511.76/8,986.26 = 3,527.63/x
  3. Step 3: Cross multiply
    6,511.76x = 8,986.26 × 3,527.63
  4. Step 4: Simplify right side
    6,511.76x = 31,700,155.43
  5. Step 5: Solve for x
    x = 31,700,155.43/6,511.76
  6. Step 6: Final answer
    x = 4,868.14

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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.