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Finding the Fourth Proportional to 13,295.96, 18,348.14 and 7,327.47

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Solution

The fourth proportional to 13,295.96, 18,348.14 and 7,327.47 is: 10,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.96 : 18,348.14 = 7,327.47 : x
  2. Step 2: Convert to fraction form
    13,295.96/18,348.14 = 7,327.47/x
  3. Step 3: Cross multiply
    13,295.96x = 18,348.14 × 7,327.47
  4. Step 4: Simplify right side
    13,295.96x = 134,445,445.41
  5. Step 5: Solve for x
    x = 134,445,445.41/13,295.96
  6. Step 6: Final answer
    x = 10,111.76

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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.