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Finding the Fourth Proportional to 5,685.76, 7,847.04 and 3,592

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Solution

The fourth proportional to 5,685.76, 7,847.04 and 3,592 is: 4,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.76 : 7,847.04 = 3,592 : x
  2. Step 2: Convert to fraction form
    5,685.76/7,847.04 = 3,592/x
  3. Step 3: Cross multiply
    5,685.76x = 7,847.04 × 3,592
  4. Step 4: Simplify right side
    5,685.76x = 28,186,567.68
  5. Step 5: Solve for x
    x = 28,186,567.68/5,685.76
  6. Step 6: Final answer
    x = 4,957.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.