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Finding the Fourth Proportional to 22,931.60, 34,429.80 and 14,183.60

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Solution

The fourth proportional to 22,931.60, 34,429.80 and 14,183.60 is: 21,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,931.60 : 34,429.80 = 14,183.60 : x
  2. Step 2: Convert to fraction form
    22,931.60/34,429.80 = 14,183.60/x
  3. Step 3: Cross multiply
    22,931.60x = 34,429.80 × 14,183.60
  4. Step 4: Simplify right side
    22,931.60x = 488,338,511.28
  5. Step 5: Solve for x
    x = 488,338,511.28/22,931.60
  6. Step 6: Final answer
    x = 21,295.44

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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.