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Finding the Fourth Proportional to 51,203.88, 70,652.76 and 28,537.89

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Solution

The fourth proportional to 51,203.88, 70,652.76 and 28,537.89 is: 39,377.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,203.88 : 70,652.76 = 28,537.89 : x
  2. Step 2: Convert to fraction form
    51,203.88/70,652.76 = 28,537.89/x
  3. Step 3: Cross multiply
    51,203.88x = 70,652.76 × 28,537.89
  4. Step 4: Simplify right side
    51,203.88x = 2,016,280,693.08
  5. Step 5: Solve for x
    x = 2,016,280,693.08/51,203.88
  6. Step 6: Final answer
    x = 39,377.50

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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.