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Finding the Fourth Proportional to 8,393.76, 11,576.88 and 5,410.08

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Solution

The fourth proportional to 8,393.76, 11,576.88 and 5,410.08 is: 7,461.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.76 : 11,576.88 = 5,410.08 : x
  2. Step 2: Convert to fraction form
    8,393.76/11,576.88 = 5,410.08/x
  3. Step 3: Cross multiply
    8,393.76x = 11,576.88 × 5,410.08
  4. Step 4: Simplify right side
    8,393.76x = 62,631,846.95
  5. Step 5: Solve for x
    x = 62,631,846.95/8,393.76
  6. Step 6: Final answer
    x = 7,461.72

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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.