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Finding the Fourth Proportional to 9,353.88, 12,907.62 and 5,576.76

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Solution

The fourth proportional to 9,353.88, 12,907.62 and 5,576.76 is: 7,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353.88 : 12,907.62 = 5,576.76 : x
  2. Step 2: Convert to fraction form
    9,353.88/12,907.62 = 5,576.76/x
  3. Step 3: Cross multiply
    9,353.88x = 12,907.62 × 5,576.76
  4. Step 4: Simplify right side
    9,353.88x = 71,982,698.91
  5. Step 5: Solve for x
    x = 71,982,698.91/9,353.88
  6. Step 6: Final answer
    x = 7,695.49

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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.