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Finding the Fourth Proportional to 9,847.76, 14,771.68 and 2,922.80

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Solution

The fourth proportional to 9,847.76, 14,771.68 and 2,922.80 is: 4,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,847.76 : 14,771.68 = 2,922.80 : x
  2. Step 2: Convert to fraction form
    9,847.76/14,771.68 = 2,922.80/x
  3. Step 3: Cross multiply
    9,847.76x = 14,771.68 × 2,922.80
  4. Step 4: Simplify right side
    9,847.76x = 43,174,666.30
  5. Step 5: Solve for x
    x = 43,174,666.30/9,847.76
  6. Step 6: Final answer
    x = 4,384.21

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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.