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Finding the Fourth Proportional to 6,329.76, 8,731.65 and 4,834.99

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Solution

The fourth proportional to 6,329.76, 8,731.65 and 4,834.99 is: 6,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,329.76 : 8,731.65 = 4,834.99 : x
  2. Step 2: Convert to fraction form
    6,329.76/8,731.65 = 4,834.99/x
  3. Step 3: Cross multiply
    6,329.76x = 8,731.65 × 4,834.99
  4. Step 4: Simplify right side
    6,329.76x = 42,217,440.43
  5. Step 5: Solve for x
    x = 42,217,440.43/6,329.76
  6. Step 6: Final answer
    x = 6,669.67

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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.