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Finding the Fourth Proportional to 8,548.54, 12,815.45 and 3,353.18

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Solution

The fourth proportional to 8,548.54, 12,815.45 and 3,353.18 is: 5,026.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.54 : 12,815.45 = 3,353.18 : x
  2. Step 2: Convert to fraction form
    8,548.54/12,815.45 = 3,353.18/x
  3. Step 3: Cross multiply
    8,548.54x = 12,815.45 × 3,353.18
  4. Step 4: Simplify right side
    8,548.54x = 42,972,510.63
  5. Step 5: Solve for x
    x = 42,972,510.63/8,548.54
  6. Step 6: Final answer
    x = 5,026.88

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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.