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Finding the Fourth Proportional to 61,869.66, 85,315.59 and 36,714.30

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Solution

The fourth proportional to 61,869.66, 85,315.59 and 36,714.30 is: 50,627.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,869.66 : 85,315.59 = 36,714.30 : x
  2. Step 2: Convert to fraction form
    61,869.66/85,315.59 = 36,714.30/x
  3. Step 3: Cross multiply
    61,869.66x = 85,315.59 × 36,714.30
  4. Step 4: Simplify right side
    61,869.66x = 3,132,302,165.94
  5. Step 5: Solve for x
    x = 3,132,302,165.94/61,869.66
  6. Step 6: Final answer
    x = 50,627.43

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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.