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Finding the Fourth Proportional to 8,878.91, 12,256.41 and 5,341.45

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Solution

The fourth proportional to 8,878.91, 12,256.41 and 5,341.45 is: 7,373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.91 : 12,256.41 = 5,341.45 : x
  2. Step 2: Convert to fraction form
    8,878.91/12,256.41 = 5,341.45/x
  3. Step 3: Cross multiply
    8,878.91x = 12,256.41 × 5,341.45
  4. Step 4: Simplify right side
    8,878.91x = 65,466,939.91
  5. Step 5: Solve for x
    x = 65,466,939.91/8,878.91
  6. Step 6: Final answer
    x = 7,373.31

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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.