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Finding the Fourth Proportional to 8,678.52, 11,978.28 and 5,095.08

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Solution

The fourth proportional to 8,678.52, 11,978.28 and 5,095.08 is: 7,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.52 : 11,978.28 = 5,095.08 : x
  2. Step 2: Convert to fraction form
    8,678.52/11,978.28 = 5,095.08/x
  3. Step 3: Cross multiply
    8,678.52x = 11,978.28 × 5,095.08
  4. Step 4: Simplify right side
    8,678.52x = 61,030,294.86
  5. Step 5: Solve for x
    x = 61,030,294.86/8,678.52
  6. Step 6: Final answer
    x = 7,032.34

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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.