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Finding the Fourth Proportional to 13,394.60, 18,483.02 and 7,424.76

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Solution

The fourth proportional to 13,394.60, 18,483.02 and 7,424.76 is: 10,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.60 : 18,483.02 = 7,424.76 : x
  2. Step 2: Convert to fraction form
    13,394.60/18,483.02 = 7,424.76/x
  3. Step 3: Cross multiply
    13,394.60x = 18,483.02 × 7,424.76
  4. Step 4: Simplify right side
    13,394.60x = 137,231,987.58
  5. Step 5: Solve for x
    x = 137,231,987.58/13,394.60
  6. Step 6: Final answer
    x = 10,245.32

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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.