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Finding the Fourth Proportional to 29,411.80, 44,044.80 and 18,865.60

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Solution

The fourth proportional to 29,411.80, 44,044.80 and 18,865.60 is: 28,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,411.80 : 44,044.80 = 18,865.60 : x
  2. Step 2: Convert to fraction form
    29,411.80/44,044.80 = 18,865.60/x
  3. Step 3: Cross multiply
    29,411.80x = 44,044.80 × 18,865.60
  4. Step 4: Simplify right side
    29,411.80x = 830,931,578.88
  5. Step 5: Solve for x
    x = 830,931,578.88/29,411.80
  6. Step 6: Final answer
    x = 28,251.64

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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.