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Finding the Fourth Proportional to 29,878.80, 44,818.20 and 10,179.60

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Solution

The fourth proportional to 29,878.80, 44,818.20 and 10,179.60 is: 15,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,878.80 : 44,818.20 = 10,179.60 : x
  2. Step 2: Convert to fraction form
    29,878.80/44,818.20 = 10,179.60/x
  3. Step 3: Cross multiply
    29,878.80x = 44,818.20 × 10,179.60
  4. Step 4: Simplify right side
    29,878.80x = 456,231,348.72
  5. Step 5: Solve for x
    x = 456,231,348.72/29,878.80
  6. Step 6: Final answer
    x = 15,269.40

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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.