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Finding the Fourth Proportional to 42,035.64, 63,040.80 and 34,621.68

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Solution

The fourth proportional to 42,035.64, 63,040.80 and 34,621.68 is: 51,922.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,035.64 : 63,040.80 = 34,621.68 : x
  2. Step 2: Convert to fraction form
    42,035.64/63,040.80 = 34,621.68/x
  3. Step 3: Cross multiply
    42,035.64x = 63,040.80 × 34,621.68
  4. Step 4: Simplify right side
    42,035.64x = 2,182,578,404.54
  5. Step 5: Solve for x
    x = 2,182,578,404.54/42,035.64
  6. Step 6: Final answer
    x = 51,922.09

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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.