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Finding the Fourth Proportional to 28,737.60, 43,048.80 and 16,411.20

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Solution

The fourth proportional to 28,737.60, 43,048.80 and 16,411.20 is: 24,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.60 : 43,048.80 = 16,411.20 : x
  2. Step 2: Convert to fraction form
    28,737.60/43,048.80 = 16,411.20/x
  3. Step 3: Cross multiply
    28,737.60x = 43,048.80 × 16,411.20
  4. Step 4: Simplify right side
    28,737.60x = 706,482,466.56
  5. Step 5: Solve for x
    x = 706,482,466.56/28,737.60
  6. Step 6: Final answer
    x = 24,583.91

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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.