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Finding the Fourth Proportional to 7,886.51, 10,881.45 and 5,197.43

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Solution

The fourth proportional to 7,886.51, 10,881.45 and 5,197.43 is: 7,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.51 : 10,881.45 = 5,197.43 : x
  2. Step 2: Convert to fraction form
    7,886.51/10,881.45 = 5,197.43/x
  3. Step 3: Cross multiply
    7,886.51x = 10,881.45 × 5,197.43
  4. Step 4: Simplify right side
    7,886.51x = 56,555,574.67
  5. Step 5: Solve for x
    x = 56,555,574.67/7,886.51
  6. Step 6: Final answer
    x = 7,171.18

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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.