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Finding the Fourth Proportional to 55,671.69, 83,506.35 and 13,551.99

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Solution

The fourth proportional to 55,671.69, 83,506.35 and 13,551.99 is: 20,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,671.69 : 83,506.35 = 13,551.99 : x
  2. Step 2: Convert to fraction form
    55,671.69/83,506.35 = 13,551.99/x
  3. Step 3: Cross multiply
    55,671.69x = 83,506.35 × 13,551.99
  4. Step 4: Simplify right side
    55,671.69x = 1,131,677,220.14
  5. Step 5: Solve for x
    x = 1,131,677,220.14/55,671.69
  6. Step 6: Final answer
    x = 20,327.70

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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.