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Finding the Fourth Proportional to 6,393.20, 8,822.58 and 3,598.70

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Solution

The fourth proportional to 6,393.20, 8,822.58 and 3,598.70 is: 4,966.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,393.20 : 8,822.58 = 3,598.70 : x
  2. Step 2: Convert to fraction form
    6,393.20/8,822.58 = 3,598.70/x
  3. Step 3: Cross multiply
    6,393.20x = 8,822.58 × 3,598.70
  4. Step 4: Simplify right side
    6,393.20x = 31,749,818.65
  5. Step 5: Solve for x
    x = 31,749,818.65/6,393.20
  6. Step 6: Final answer
    x = 4,966.19

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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.