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Finding the Fourth Proportional to 61,152.75, 84,311.82 and 39,604.23

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Solution

The fourth proportional to 61,152.75, 84,311.82 and 39,604.23 is: 54,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,152.75 : 84,311.82 = 39,604.23 : x
  2. Step 2: Convert to fraction form
    61,152.75/84,311.82 = 39,604.23/x
  3. Step 3: Cross multiply
    61,152.75x = 84,311.82 × 39,604.23
  4. Step 4: Simplify right side
    61,152.75x = 3,339,104,711.00
  5. Step 5: Solve for x
    x = 3,339,104,711.00/61,152.75
  6. Step 6: Final answer
    x = 54,602.69

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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.