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Finding the Fourth Proportional to 8,536, 11,779.68 and 4,810

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Solution

The fourth proportional to 8,536, 11,779.68 and 4,810 is: 6,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536 : 11,779.68 = 4,810 : x
  2. Step 2: Convert to fraction form
    8,536/11,779.68 = 4,810/x
  3. Step 3: Cross multiply
    8,536x = 11,779.68 × 4,810
  4. Step 4: Simplify right side
    8,536x = 56,660,260.80
  5. Step 5: Solve for x
    x = 56,660,260.80/8,536
  6. Step 6: Final answer
    x = 6,637.80

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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.