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Finding the Fourth Proportional to 8,710.76, 13,062.90 and 4,325.82

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Solution

The fourth proportional to 8,710.76, 13,062.90 and 4,325.82 is: 6,487.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.76 : 13,062.90 = 4,325.82 : x
  2. Step 2: Convert to fraction form
    8,710.76/13,062.90 = 4,325.82/x
  3. Step 3: Cross multiply
    8,710.76x = 13,062.90 × 4,325.82
  4. Step 4: Simplify right side
    8,710.76x = 56,507,754.08
  5. Step 5: Solve for x
    x = 56,507,754.08/8,710.76
  6. Step 6: Final answer
    x = 6,487.12

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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.