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Finding the Fourth Proportional to 53,995.68, 74,529.68 and 31,339.76

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Solution

The fourth proportional to 53,995.68, 74,529.68 and 31,339.76 is: 43,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,995.68 : 74,529.68 = 31,339.76 : x
  2. Step 2: Convert to fraction form
    53,995.68/74,529.68 = 31,339.76/x
  3. Step 3: Cross multiply
    53,995.68x = 74,529.68 × 31,339.76
  4. Step 4: Simplify right side
    53,995.68x = 2,335,741,754.73
  5. Step 5: Solve for x
    x = 2,335,741,754.73/53,995.68
  6. Step 6: Final answer
    x = 43,257.94

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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.