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Finding the Fourth Proportional to 64,307.58, 96,489.09 and 34,719.54

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Solution

The fourth proportional to 64,307.58, 96,489.09 and 34,719.54 is: 52,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,307.58 : 96,489.09 = 34,719.54 : x
  2. Step 2: Convert to fraction form
    64,307.58/96,489.09 = 34,719.54/x
  3. Step 3: Cross multiply
    64,307.58x = 96,489.09 × 34,719.54
  4. Step 4: Simplify right side
    64,307.58x = 3,350,056,819.82
  5. Step 5: Solve for x
    x = 3,350,056,819.82/64,307.58
  6. Step 6: Final answer
    x = 52,094.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.