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Finding the Fourth Proportional to 33,154.40, 49,731.60 and 28,877.60

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Solution

The fourth proportional to 33,154.40, 49,731.60 and 28,877.60 is: 43,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,154.40 : 49,731.60 = 28,877.60 : x
  2. Step 2: Convert to fraction form
    33,154.40/49,731.60 = 28,877.60/x
  3. Step 3: Cross multiply
    33,154.40x = 49,731.60 × 28,877.60
  4. Step 4: Simplify right side
    33,154.40x = 1,436,129,252.16
  5. Step 5: Solve for x
    x = 1,436,129,252.16/33,154.40
  6. Step 6: Final answer
    x = 43,316.40

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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.