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Finding the Fourth Proportional to 55,843.59, 77,142.60 and 50,798.91

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Solution

The fourth proportional to 55,843.59, 77,142.60 and 50,798.91 is: 70,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,843.59 : 77,142.60 = 50,798.91 : x
  2. Step 2: Convert to fraction form
    55,843.59/77,142.60 = 50,798.91/x
  3. Step 3: Cross multiply
    55,843.59x = 77,142.60 × 50,798.91
  4. Step 4: Simplify right side
    55,843.59x = 3,918,759,994.57
  5. Step 5: Solve for x
    x = 3,918,759,994.57/55,843.59
  6. Step 6: Final answer
    x = 70,173.86

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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.