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Finding the Fourth Proportional to 56,307.92, 77,290.97 and 49,791.69

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Solution

The fourth proportional to 56,307.92, 77,290.97 and 49,791.69 is: 68,346.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,307.92 : 77,290.97 = 49,791.69 : x
  2. Step 2: Convert to fraction form
    56,307.92/77,290.97 = 49,791.69/x
  3. Step 3: Cross multiply
    56,307.92x = 77,290.97 × 49,791.69
  4. Step 4: Simplify right side
    56,307.92x = 3,848,447,769.08
  5. Step 5: Solve for x
    x = 3,848,447,769.08/56,307.92
  6. Step 6: Final answer
    x = 68,346.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.