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Finding the Fourth Proportional to 39,392.83, 59,053.70 and 14,415.46

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Solution

The fourth proportional to 39,392.83, 59,053.70 and 14,415.46 is: 21,610.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.83 : 59,053.70 = 14,415.46 : x
  2. Step 2: Convert to fraction form
    39,392.83/59,053.70 = 14,415.46/x
  3. Step 3: Cross multiply
    39,392.83x = 59,053.70 × 14,415.46
  4. Step 4: Simplify right side
    39,392.83x = 851,286,361.80
  5. Step 5: Solve for x
    x = 851,286,361.80/39,392.83
  6. Step 6: Final answer
    x = 21,610.19

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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.