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Finding the Fourth Proportional to 61,419.45, 84,760.47 and 34,562.91

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Solution

The fourth proportional to 61,419.45, 84,760.47 and 34,562.91 is: 47,697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,419.45 : 84,760.47 = 34,562.91 : x
  2. Step 2: Convert to fraction form
    61,419.45/84,760.47 = 34,562.91/x
  3. Step 3: Cross multiply
    61,419.45x = 84,760.47 × 34,562.91
  4. Step 4: Simplify right side
    61,419.45x = 2,929,568,496.17
  5. Step 5: Solve for x
    x = 2,929,568,496.17/61,419.45
  6. Step 6: Final answer
    x = 47,697.73

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1.5x scale

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.