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Finding the Fourth Proportional to 13,871.04, 19,142.03 and 7,583.41

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Solution

The fourth proportional to 13,871.04, 19,142.03 and 7,583.41 is: 10,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.04 : 19,142.03 = 7,583.41 : x
  2. Step 2: Convert to fraction form
    13,871.04/19,142.03 = 7,583.41/x
  3. Step 3: Cross multiply
    13,871.04x = 19,142.03 × 7,583.41
  4. Step 4: Simplify right side
    13,871.04x = 145,161,823.81
  5. Step 5: Solve for x
    x = 145,161,823.81/13,871.04
  6. Step 6: Final answer
    x = 10,465.10

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Why These Related Problems?

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