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Finding the Fourth Proportional to 60,309.68, 91,011.80 and 58,299.71

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Solution

The fourth proportional to 60,309.68, 91,011.80 and 58,299.71 is: 87,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,309.68 : 91,011.80 = 58,299.71 : x
  2. Step 2: Convert to fraction form
    60,309.68/91,011.80 = 58,299.71/x
  3. Step 3: Cross multiply
    60,309.68x = 91,011.80 × 58,299.71
  4. Step 4: Simplify right side
    60,309.68x = 5,305,961,546.58
  5. Step 5: Solve for x
    x = 5,305,961,546.58/60,309.68
  6. Step 6: Final answer
    x = 87,978.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.