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Finding the Fourth Proportional to 61,749.69, 85,216.28 and 34,891.67

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Solution

The fourth proportional to 61,749.69, 85,216.28 and 34,891.67 is: 48,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,749.69 : 85,216.28 = 34,891.67 : x
  2. Step 2: Convert to fraction form
    61,749.69/85,216.28 = 34,891.67/x
  3. Step 3: Cross multiply
    61,749.69x = 85,216.28 × 34,891.67
  4. Step 4: Simplify right side
    61,749.69x = 2,973,337,719.85
  5. Step 5: Solve for x
    x = 2,973,337,719.85/61,749.69
  6. Step 6: Final answer
    x = 48,151.46

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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.