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Finding the Fourth Proportional to 7,676.88, 10,585.76 and 6,673.28

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Solution

The fourth proportional to 7,676.88, 10,585.76 and 6,673.28 is: 9,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.88 : 10,585.76 = 6,673.28 : x
  2. Step 2: Convert to fraction form
    7,676.88/10,585.76 = 6,673.28/x
  3. Step 3: Cross multiply
    7,676.88x = 10,585.76 × 6,673.28
  4. Step 4: Simplify right side
    7,676.88x = 70,641,740.49
  5. Step 5: Solve for x
    x = 70,641,740.49/7,676.88
  6. Step 6: Final answer
    x = 9,201.88

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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.