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Finding the Fourth Proportional to 13,463.57, 18,578.84 and 7,495.09

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Solution

The fourth proportional to 13,463.57, 18,578.84 and 7,495.09 is: 10,342.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,463.57 : 18,578.84 = 7,495.09 : x
  2. Step 2: Convert to fraction form
    13,463.57/18,578.84 = 7,495.09/x
  3. Step 3: Cross multiply
    13,463.57x = 18,578.84 × 7,495.09
  4. Step 4: Simplify right side
    13,463.57x = 139,249,993.97
  5. Step 5: Solve for x
    x = 139,249,993.97/13,463.57
  6. Step 6: Final answer
    x = 10,342.72

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1.5x scale

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.