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Finding the Fourth Proportional to 8,160.51, 11,255.13 and 5,470.83

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Solution

The fourth proportional to 8,160.51, 11,255.13 and 5,470.83 is: 7,545.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.51 : 11,255.13 = 5,470.83 : x
  2. Step 2: Convert to fraction form
    8,160.51/11,255.13 = 5,470.83/x
  3. Step 3: Cross multiply
    8,160.51x = 11,255.13 × 5,470.83
  4. Step 4: Simplify right side
    8,160.51x = 61,574,902.86
  5. Step 5: Solve for x
    x = 61,574,902.86/8,160.51
  6. Step 6: Final answer
    x = 7,545.47

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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.