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Finding the Fourth Proportional to 7,345.88, 10,994.45 and 6,689.27

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Solution

The fourth proportional to 7,345.88, 10,994.45 and 6,689.27 is: 10,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.88 : 10,994.45 = 6,689.27 : x
  2. Step 2: Convert to fraction form
    7,345.88/10,994.45 = 6,689.27/x
  3. Step 3: Cross multiply
    7,345.88x = 10,994.45 × 6,689.27
  4. Step 4: Simplify right side
    7,345.88x = 73,544,797.36
  5. Step 5: Solve for x
    x = 73,544,797.36/7,345.88
  6. Step 6: Final answer
    x = 10,011.71

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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.