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Finding the Fourth Proportional to 6,672.04, 9,206.78 and 3,687.40

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Solution

The fourth proportional to 6,672.04, 9,206.78 and 3,687.40 is: 5,088.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.04 : 9,206.78 = 3,687.40 : x
  2. Step 2: Convert to fraction form
    6,672.04/9,206.78 = 3,687.40/x
  3. Step 3: Cross multiply
    6,672.04x = 9,206.78 × 3,687.40
  4. Step 4: Simplify right side
    6,672.04x = 33,949,080.57
  5. Step 5: Solve for x
    x = 33,949,080.57/6,672.04
  6. Step 6: Final answer
    x = 5,088.26

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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.