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Finding the Fourth Proportional to 8,362.78, 11,544.86 and 6,470.08

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Solution

The fourth proportional to 8,362.78, 11,544.86 and 6,470.08 is: 8,931.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.78 : 11,544.86 = 6,470.08 : x
  2. Step 2: Convert to fraction form
    8,362.78/11,544.86 = 6,470.08/x
  3. Step 3: Cross multiply
    8,362.78x = 11,544.86 × 6,470.08
  4. Step 4: Simplify right side
    8,362.78x = 74,696,167.79
  5. Step 5: Solve for x
    x = 74,696,167.79/8,362.78
  6. Step 6: Final answer
    x = 8,931.98

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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.