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Finding the Fourth Proportional to 13,394.51, 18,484.01 and 7,344.62

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Solution

The fourth proportional to 13,394.51, 18,484.01 and 7,344.62 is: 10,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.51 : 18,484.01 = 7,344.62 : x
  2. Step 2: Convert to fraction form
    13,394.51/18,484.01 = 7,344.62/x
  3. Step 3: Cross multiply
    13,394.51x = 18,484.01 × 7,344.62
  4. Step 4: Simplify right side
    13,394.51x = 135,758,029.53
  5. Step 5: Solve for x
    x = 135,758,029.53/13,394.51
  6. Step 6: Final answer
    x = 10,135.35

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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.