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Finding the Fourth Proportional to 57,804.61, 79,770.33 and 33,931.28

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Solution

The fourth proportional to 57,804.61, 79,770.33 and 33,931.28 is: 46,825.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,804.61 : 79,770.33 = 33,931.28 : x
  2. Step 2: Convert to fraction form
    57,804.61/79,770.33 = 33,931.28/x
  3. Step 3: Cross multiply
    57,804.61x = 79,770.33 × 33,931.28
  4. Step 4: Simplify right side
    57,804.61x = 2,706,709,729.59
  5. Step 5: Solve for x
    x = 2,706,709,729.59/57,804.61
  6. Step 6: Final answer
    x = 46,825.15

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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.