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Finding the Fourth Proportional to 8,356.06, 11,530.86 and 4,578.47

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Solution

The fourth proportional to 8,356.06, 11,530.86 and 4,578.47 is: 6,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.06 : 11,530.86 = 4,578.47 : x
  2. Step 2: Convert to fraction form
    8,356.06/11,530.86 = 4,578.47/x
  3. Step 3: Cross multiply
    8,356.06x = 11,530.86 × 4,578.47
  4. Step 4: Simplify right side
    8,356.06x = 52,793,665.00
  5. Step 5: Solve for x
    x = 52,793,665.00/8,356.06
  6. Step 6: Final answer
    x = 6,318.01

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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.