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Finding the Fourth Proportional to 7,576.88, 10,455.90 and 7,353.32

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Solution

The fourth proportional to 7,576.88, 10,455.90 and 7,353.32 is: 10,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,576.88 : 10,455.90 = 7,353.32 : x
  2. Step 2: Convert to fraction form
    7,576.88/10,455.90 = 7,353.32/x
  3. Step 3: Cross multiply
    7,576.88x = 10,455.90 × 7,353.32
  4. Step 4: Simplify right side
    7,576.88x = 76,885,578.59
  5. Step 5: Solve for x
    x = 76,885,578.59/7,576.88
  6. Step 6: Final answer
    x = 10,147.39

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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.