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Finding the Fourth Proportional to 8,475.48, 11,696.88 and 4,939.02

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Solution

The fourth proportional to 8,475.48, 11,696.88 and 4,939.02 is: 6,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.48 : 11,696.88 = 4,939.02 : x
  2. Step 2: Convert to fraction form
    8,475.48/11,696.88 = 4,939.02/x
  3. Step 3: Cross multiply
    8,475.48x = 11,696.88 × 4,939.02
  4. Step 4: Simplify right side
    8,475.48x = 57,771,124.26
  5. Step 5: Solve for x
    x = 57,771,124.26/8,475.48
  6. Step 6: Final answer
    x = 6,816.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.