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Finding the Fourth Proportional to 6,392.67, 8,821.80 and 3,598.17

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Solution

The fourth proportional to 6,392.67, 8,821.80 and 3,598.17 is: 4,965.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.67 : 8,821.80 = 3,598.17 : x
  2. Step 2: Convert to fraction form
    6,392.67/8,821.80 = 3,598.17/x
  3. Step 3: Cross multiply
    6,392.67x = 8,821.80 × 3,598.17
  4. Step 4: Simplify right side
    6,392.67x = 31,742,336.11
  5. Step 5: Solve for x
    x = 31,742,336.11/6,392.67
  6. Step 6: Final answer
    x = 4,965.43

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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.