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Finding the Fourth Proportional to 22,299.60, 30,773.64 and 12,868.08

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Solution

The fourth proportional to 22,299.60, 30,773.64 and 12,868.08 is: 17,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,299.60 : 30,773.64 = 12,868.08 : x
  2. Step 2: Convert to fraction form
    22,299.60/30,773.64 = 12,868.08/x
  3. Step 3: Cross multiply
    22,299.60x = 30,773.64 × 12,868.08
  4. Step 4: Simplify right side
    22,299.60x = 395,997,661.41
  5. Step 5: Solve for x
    x = 395,997,661.41/22,299.60
  6. Step 6: Final answer
    x = 17,758.06

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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.