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Finding the Fourth Proportional to 6,622.55, 9,130.19 and 5,674.24

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Solution

The fourth proportional to 6,622.55, 9,130.19 and 5,674.24 is: 7,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.55 : 9,130.19 = 5,674.24 : x
  2. Step 2: Convert to fraction form
    6,622.55/9,130.19 = 5,674.24/x
  3. Step 3: Cross multiply
    6,622.55x = 9,130.19 × 5,674.24
  4. Step 4: Simplify right side
    6,622.55x = 51,806,889.31
  5. Step 5: Solve for x
    x = 51,806,889.31/6,622.55
  6. Step 6: Final answer
    x = 7,822.80

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1.5x scale

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.