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Finding the Fourth Proportional to 43,706.64, 65,560.04 and 18,730.52

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Solution

The fourth proportional to 43,706.64, 65,560.04 and 18,730.52 is: 28,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,706.64 : 65,560.04 = 18,730.52 : x
  2. Step 2: Convert to fraction form
    43,706.64/65,560.04 = 18,730.52/x
  3. Step 3: Cross multiply
    43,706.64x = 65,560.04 × 18,730.52
  4. Step 4: Simplify right side
    43,706.64x = 1,227,973,640.42
  5. Step 5: Solve for x
    x = 1,227,973,640.42/43,706.64
  6. Step 6: Final answer
    x = 28,095.81

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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.