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Finding the Fourth Proportional to 8,672.40, 13,008.60 and 3,125.93

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Solution

The fourth proportional to 8,672.40, 13,008.60 and 3,125.93 is: 4,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.40 : 13,008.60 = 3,125.93 : x
  2. Step 2: Convert to fraction form
    8,672.40/13,008.60 = 3,125.93/x
  3. Step 3: Cross multiply
    8,672.40x = 13,008.60 × 3,125.93
  4. Step 4: Simplify right side
    8,672.40x = 40,663,907.96
  5. Step 5: Solve for x
    x = 40,663,907.96/8,672.40
  6. Step 6: Final answer
    x = 4,688.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.