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Finding the Fourth Proportional to 71,034.59, 98,027.28 and 39,203.49

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Solution

The fourth proportional to 71,034.59, 98,027.28 and 39,203.49 is: 54,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,034.59 : 98,027.28 = 39,203.49 : x
  2. Step 2: Convert to fraction form
    71,034.59/98,027.28 = 39,203.49/x
  3. Step 3: Cross multiply
    71,034.59x = 98,027.28 × 39,203.49
  4. Step 4: Simplify right side
    71,034.59x = 3,843,011,491.21
  5. Step 5: Solve for x
    x = 3,843,011,491.21/71,034.59
  6. Step 6: Final answer
    x = 54,100.57

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1.5x scale

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.