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Finding the Fourth Proportional to 13,394.65, 18,483.65 and 7,343.92

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Solution

The fourth proportional to 13,394.65, 18,483.65 and 7,343.92 is: 10,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.65 : 18,483.65 = 7,343.92 : x
  2. Step 2: Convert to fraction form
    13,394.65/18,483.65 = 7,343.92/x
  3. Step 3: Cross multiply
    13,394.65x = 18,483.65 × 7,343.92
  4. Step 4: Simplify right side
    13,394.65x = 135,742,495.49
  5. Step 5: Solve for x
    x = 135,742,495.49/13,394.65
  6. Step 6: Final answer
    x = 10,134.08

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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.