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Finding the Fourth Proportional to 14,282.46, 19,709.15 and 7,908.60

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Solution

The fourth proportional to 14,282.46, 19,709.15 and 7,908.60 is: 10,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.46 : 19,709.15 = 7,908.60 : x
  2. Step 2: Convert to fraction form
    14,282.46/19,709.15 = 7,908.60/x
  3. Step 3: Cross multiply
    14,282.46x = 19,709.15 × 7,908.60
  4. Step 4: Simplify right side
    14,282.46x = 155,871,818.06
  5. Step 5: Solve for x
    x = 155,871,818.06/14,282.46
  6. Step 6: Final answer
    x = 10,913.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.