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Finding the Fourth Proportional to 8,909.54, 12,294.63 and 4,930.41

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Solution

The fourth proportional to 8,909.54, 12,294.63 and 4,930.41 is: 6,803.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.54 : 12,294.63 = 4,930.41 : x
  2. Step 2: Convert to fraction form
    8,909.54/12,294.63 = 4,930.41/x
  3. Step 3: Cross multiply
    8,909.54x = 12,294.63 × 4,930.41
  4. Step 4: Simplify right side
    8,909.54x = 60,617,566.70
  5. Step 5: Solve for x
    x = 60,617,566.70/8,909.54
  6. Step 6: Final answer
    x = 6,803.67

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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.