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Finding the Fourth Proportional to 71,059.47, 98,062.14 and 39,228.49

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Solution

The fourth proportional to 71,059.47, 98,062.14 and 39,228.49 is: 54,135.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,059.47 : 98,062.14 = 39,228.49 : x
  2. Step 2: Convert to fraction form
    71,059.47/98,062.14 = 39,228.49/x
  3. Step 3: Cross multiply
    71,059.47x = 98,062.14 × 39,228.49
  4. Step 4: Simplify right side
    71,059.47x = 3,846,829,678.37
  5. Step 5: Solve for x
    x = 3,846,829,678.37/71,059.47
  6. Step 6: Final answer
    x = 54,135.36

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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.