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Finding the Fourth Proportional to 13,574.72, 18,732.04 and 7,605.04

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Solution

The fourth proportional to 13,574.72, 18,732.04 and 7,605.04 is: 10,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.72 : 18,732.04 = 7,605.04 : x
  2. Step 2: Convert to fraction form
    13,574.72/18,732.04 = 7,605.04/x
  3. Step 3: Cross multiply
    13,574.72x = 18,732.04 × 7,605.04
  4. Step 4: Simplify right side
    13,574.72x = 142,457,913.48
  5. Step 5: Solve for x
    x = 142,457,913.48/13,574.72
  6. Step 6: Final answer
    x = 10,494.35

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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.