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Finding the Fourth Proportional to 55,771.70, 83,657.55 and 53,179.70

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Solution

The fourth proportional to 55,771.70, 83,657.55 and 53,179.70 is: 79,769.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,771.70 : 83,657.55 = 53,179.70 : x
  2. Step 2: Convert to fraction form
    55,771.70/83,657.55 = 53,179.70/x
  3. Step 3: Cross multiply
    55,771.70x = 83,657.55 × 53,179.70
  4. Step 4: Simplify right side
    55,771.70x = 4,448,883,411.74
  5. Step 5: Solve for x
    x = 4,448,883,411.74/55,771.70
  6. Step 6: Final answer
    x = 79,769.55

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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.