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Finding the Fourth Proportional to 16,555.60, 22,847.56 and 9,845.20

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Solution

The fourth proportional to 16,555.60, 22,847.56 and 9,845.20 is: 13,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,555.60 : 22,847.56 = 9,845.20 : x
  2. Step 2: Convert to fraction form
    16,555.60/22,847.56 = 9,845.20/x
  3. Step 3: Cross multiply
    16,555.60x = 22,847.56 × 9,845.20
  4. Step 4: Simplify right side
    16,555.60x = 224,938,797.71
  5. Step 5: Solve for x
    x = 224,938,797.71/16,555.60
  6. Step 6: Final answer
    x = 13,586.87

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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.