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Finding the Fourth Proportional to 49,902.90, 68,749.02 and 34,768.18

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Solution

The fourth proportional to 49,902.90, 68,749.02 and 34,768.18 is: 47,898.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,902.90 : 68,749.02 = 34,768.18 : x
  2. Step 2: Convert to fraction form
    49,902.90/68,749.02 = 34,768.18/x
  3. Step 3: Cross multiply
    49,902.90x = 68,749.02 × 34,768.18
  4. Step 4: Simplify right side
    49,902.90x = 2,390,278,302.18
  5. Step 5: Solve for x
    x = 2,390,278,302.18/49,902.90
  6. Step 6: Final answer
    x = 47,898.59

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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.