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Finding the Fourth Proportional to 5,651.16, 8,472.15 and 4,880.31

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Solution

The fourth proportional to 5,651.16, 8,472.15 and 4,880.31 is: 7,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.16 : 8,472.15 = 4,880.31 : x
  2. Step 2: Convert to fraction form
    5,651.16/8,472.15 = 4,880.31/x
  3. Step 3: Cross multiply
    5,651.16x = 8,472.15 × 4,880.31
  4. Step 4: Simplify right side
    5,651.16x = 41,346,718.37
  5. Step 5: Solve for x
    x = 41,346,718.37/5,651.16
  6. Step 6: Final answer
    x = 7,316.50

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1.5x scale

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.