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Finding the Fourth Proportional to 59,338.40, 88,978.80 and 33,015.20

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Solution

The fourth proportional to 59,338.40, 88,978.80 and 33,015.20 is: 49,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,338.40 : 88,978.80 = 33,015.20 : x
  2. Step 2: Convert to fraction form
    59,338.40/88,978.80 = 33,015.20/x
  3. Step 3: Cross multiply
    59,338.40x = 88,978.80 × 33,015.20
  4. Step 4: Simplify right side
    59,338.40x = 2,937,652,877.76
  5. Step 5: Solve for x
    x = 2,937,652,877.76/59,338.40
  6. Step 6: Final answer
    x = 49,506.78

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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.