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Finding the Fourth Proportional to 67,671.81, 93,365.63 and 39,372.03

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Solution

The fourth proportional to 67,671.81, 93,365.63 and 39,372.03 is: 54,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,671.81 : 93,365.63 = 39,372.03 : x
  2. Step 2: Convert to fraction form
    67,671.81/93,365.63 = 39,372.03/x
  3. Step 3: Cross multiply
    67,671.81x = 93,365.63 × 39,372.03
  4. Step 4: Simplify right side
    67,671.81x = 3,675,994,336.11
  5. Step 5: Solve for x
    x = 3,675,994,336.11/67,671.81
  6. Step 6: Final answer
    x = 54,320.91

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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.