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Finding the Fourth Proportional to 61,358.82, 84,674.06 and 34,134.78

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Solution

The fourth proportional to 61,358.82, 84,674.06 and 34,134.78 is: 47,105.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,358.82 : 84,674.06 = 34,134.78 : x
  2. Step 2: Convert to fraction form
    61,358.82/84,674.06 = 34,134.78/x
  3. Step 3: Cross multiply
    61,358.82x = 84,674.06 × 34,134.78
  4. Step 4: Simplify right side
    61,358.82x = 2,890,330,409.81
  5. Step 5: Solve for x
    x = 2,890,330,409.81/61,358.82
  6. Step 6: Final answer
    x = 47,105.38

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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.