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Finding the Fourth Proportional to 4,706.76, 7,062.57 and 1,787.16

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Solution

The fourth proportional to 4,706.76, 7,062.57 and 1,787.16 is: 2,681.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,706.76 : 7,062.57 = 1,787.16 : x
  2. Step 2: Convert to fraction form
    4,706.76/7,062.57 = 1,787.16/x
  3. Step 3: Cross multiply
    4,706.76x = 7,062.57 × 1,787.16
  4. Step 4: Simplify right side
    4,706.76x = 12,621,942.60
  5. Step 5: Solve for x
    x = 12,621,942.60/4,706.76
  6. Step 6: Final answer
    x = 2,681.66

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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.