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Finding the Fourth Proportional to 53,449.92, 73,712.16 and 45,893.88

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Solution

The fourth proportional to 53,449.92, 73,712.16 and 45,893.88 is: 63,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,449.92 : 73,712.16 = 45,893.88 : x
  2. Step 2: Convert to fraction form
    53,449.92/73,712.16 = 45,893.88/x
  3. Step 3: Cross multiply
    53,449.92x = 73,712.16 × 45,893.88
  4. Step 4: Simplify right side
    53,449.92x = 3,382,937,025.58
  5. Step 5: Solve for x
    x = 3,382,937,025.58/53,449.92
  6. Step 6: Final answer
    x = 63,291.71

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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.