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Finding the Fourth Proportional to 62,112, 85,714.20 and 35,259.60

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Solution

The fourth proportional to 62,112, 85,714.20 and 35,259.60 is: 48,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,112 : 85,714.20 = 35,259.60 : x
  2. Step 2: Convert to fraction form
    62,112/85,714.20 = 35,259.60/x
  3. Step 3: Cross multiply
    62,112x = 85,714.20 × 35,259.60
  4. Step 4: Simplify right side
    62,112x = 3,022,248,406.32
  5. Step 5: Solve for x
    x = 3,022,248,406.32/62,112
  6. Step 6: Final answer
    x = 48,658.04

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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.