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Finding the Fourth Proportional to 51,597.66, 71,207.88 and 28,938.00

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Solution

The fourth proportional to 51,597.66, 71,207.88 and 28,938.00 is: 39,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,597.66 : 71,207.88 = 28,938.00 : x
  2. Step 2: Convert to fraction form
    51,597.66/71,207.88 = 28,938.00/x
  3. Step 3: Cross multiply
    51,597.66x = 71,207.88 × 28,938.00
  4. Step 4: Simplify right side
    51,597.66x = 2,060,613,435.44
  5. Step 5: Solve for x
    x = 2,060,613,435.44/51,597.66
  6. Step 6: Final answer
    x = 39,936.18

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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.