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Finding the Fourth Proportional to 8,507.43, 12,750.74 and 4,801.98

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Solution

The fourth proportional to 8,507.43, 12,750.74 and 4,801.98 is: 7,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.43 : 12,750.74 = 4,801.98 : x
  2. Step 2: Convert to fraction form
    8,507.43/12,750.74 = 4,801.98/x
  3. Step 3: Cross multiply
    8,507.43x = 12,750.74 × 4,801.98
  4. Step 4: Simplify right side
    8,507.43x = 61,228,853.78
  5. Step 5: Solve for x
    x = 61,228,853.78/8,507.43
  6. Step 6: Final answer
    x = 7,197.10

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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.