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Finding the Fourth Proportional to 71,995.40, 99,265.39 and 59,203.88

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Solution

The fourth proportional to 71,995.40, 99,265.39 and 59,203.88 is: 81,628.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,995.40 : 99,265.39 = 59,203.88 : x
  2. Step 2: Convert to fraction form
    71,995.40/99,265.39 = 59,203.88/x
  3. Step 3: Cross multiply
    71,995.40x = 99,265.39 × 59,203.88
  4. Step 4: Simplify right side
    71,995.40x = 5,876,896,237.71
  5. Step 5: Solve for x
    x = 5,876,896,237.71/71,995.40
  6. Step 6: Final answer
    x = 81,628.77

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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.