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Finding the Fourth Proportional to 51,263.63, 70,743.87 and 30,042.88

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Solution

The fourth proportional to 51,263.63, 70,743.87 and 30,042.88 is: 41,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,263.63 : 70,743.87 = 30,042.88 : x
  2. Step 2: Convert to fraction form
    51,263.63/70,743.87 = 30,042.88/x
  3. Step 3: Cross multiply
    51,263.63x = 70,743.87 × 30,042.88
  4. Step 4: Simplify right side
    51,263.63x = 2,125,349,597.15
  5. Step 5: Solve for x
    x = 2,125,349,597.15/51,263.63
  6. Step 6: Final answer
    x = 41,459.21

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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.