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Finding the Fourth Proportional to 61,907.27, 85,434.11 and 34,684.54

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Solution

The fourth proportional to 61,907.27, 85,434.11 and 34,684.54 is: 47,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,907.27 : 85,434.11 = 34,684.54 : x
  2. Step 2: Convert to fraction form
    61,907.27/85,434.11 = 34,684.54/x
  3. Step 3: Cross multiply
    61,907.27x = 85,434.11 × 34,684.54
  4. Step 4: Simplify right side
    61,907.27x = 2,963,242,805.66
  5. Step 5: Solve for x
    x = 2,963,242,805.66/61,907.27
  6. Step 6: Final answer
    x = 47,865.83

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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.