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Finding the Fourth Proportional to 53,407.59, 73,730.30 and 49,873.83

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Solution

The fourth proportional to 53,407.59, 73,730.30 and 49,873.83 is: 68,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,407.59 : 73,730.30 = 49,873.83 : x
  2. Step 2: Convert to fraction form
    53,407.59/73,730.30 = 49,873.83/x
  3. Step 3: Cross multiply
    53,407.59x = 73,730.30 × 49,873.83
  4. Step 4: Simplify right side
    53,407.59x = 3,677,212,198.68
  5. Step 5: Solve for x
    x = 3,677,212,198.68/53,407.59
  6. Step 6: Final answer
    x = 68,851.87

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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.