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Finding the Fourth Proportional to 10,374.40, 15,525.15 and 7,093.90

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Solution

The fourth proportional to 10,374.40, 15,525.15 and 7,093.90 is: 10,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,374.40 : 15,525.15 = 7,093.90 : x
  2. Step 2: Convert to fraction form
    10,374.40/15,525.15 = 7,093.90/x
  3. Step 3: Cross multiply
    10,374.40x = 15,525.15 × 7,093.90
  4. Step 4: Simplify right side
    10,374.40x = 110,133,861.59
  5. Step 5: Solve for x
    x = 110,133,861.59/10,374.40
  6. Step 6: Final answer
    x = 10,615.93

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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.