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Finding the Fourth Proportional to 53,725.80, 80,588.70 and 49,837.80

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Solution

The fourth proportional to 53,725.80, 80,588.70 and 49,837.80 is: 74,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,725.80 : 80,588.70 = 49,837.80 : x
  2. Step 2: Convert to fraction form
    53,725.80/80,588.70 = 49,837.80/x
  3. Step 3: Cross multiply
    53,725.80x = 80,588.70 × 49,837.80
  4. Step 4: Simplify right side
    53,725.80x = 4,016,363,512.86
  5. Step 5: Solve for x
    x = 4,016,363,512.86/53,725.80
  6. Step 6: Final answer
    x = 74,756.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.