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Finding the Fourth Proportional to 55,751.70, 83,627.55 and 53,159.70

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Solution

The fourth proportional to 55,751.70, 83,627.55 and 53,159.70 is: 79,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,751.70 : 83,627.55 = 53,159.70 : x
  2. Step 2: Convert to fraction form
    55,751.70/83,627.55 = 53,159.70/x
  3. Step 3: Cross multiply
    55,751.70x = 83,627.55 × 53,159.70
  4. Step 4: Simplify right side
    55,751.70x = 4,445,615,469.74
  5. Step 5: Solve for x
    x = 4,445,615,469.74/55,751.70
  6. Step 6: Final answer
    x = 79,739.55

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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.