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Finding the Fourth Proportional to 13,370.47, 18,457.47 and 7,995.31

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Solution

The fourth proportional to 13,370.47, 18,457.47 and 7,995.31 is: 11,037.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.47 : 18,457.47 = 7,995.31 : x
  2. Step 2: Convert to fraction form
    13,370.47/18,457.47 = 7,995.31/x
  3. Step 3: Cross multiply
    13,370.47x = 18,457.47 × 7,995.31
  4. Step 4: Simplify right side
    13,370.47x = 147,573,148.32
  5. Step 5: Solve for x
    x = 147,573,148.32/13,370.47
  6. Step 6: Final answer
    x = 11,037.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.