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Finding the Fourth Proportional to 8,349.16, 11,521.20 and 4,810

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Solution

The fourth proportional to 8,349.16, 11,521.20 and 4,810 is: 6,637.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.16 : 11,521.20 = 4,810 : x
  2. Step 2: Convert to fraction form
    8,349.16/11,521.20 = 4,810/x
  3. Step 3: Cross multiply
    8,349.16x = 11,521.20 × 4,810
  4. Step 4: Simplify right side
    8,349.16x = 55,416,972
  5. Step 5: Solve for x
    x = 55,416,972/8,349.16
  6. Step 6: Final answer
    x = 6,637.43

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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.