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Finding the Fourth Proportional to 5,617.12, 8,369.62 and 5,365.62

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Solution

The fourth proportional to 5,617.12, 8,369.62 and 5,365.62 is: 7,994.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.12 : 8,369.62 = 5,365.62 : x
  2. Step 2: Convert to fraction form
    5,617.12/8,369.62 = 5,365.62/x
  3. Step 3: Cross multiply
    5,617.12x = 8,369.62 × 5,365.62
  4. Step 4: Simplify right side
    5,617.12x = 44,908,200.46
  5. Step 5: Solve for x
    x = 44,908,200.46/5,617.12
  6. Step 6: Final answer
    x = 7,994.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.