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Finding the Fourth Proportional to 61,043.50, 84,242.74 and 34,185.43

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Solution

The fourth proportional to 61,043.50, 84,242.74 and 34,185.43 is: 47,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,043.50 : 84,242.74 = 34,185.43 : x
  2. Step 2: Convert to fraction form
    61,043.50/84,242.74 = 34,185.43/x
  3. Step 3: Cross multiply
    61,043.50x = 84,242.74 × 34,185.43
  4. Step 4: Simplify right side
    61,043.50x = 2,879,874,291.28
  5. Step 5: Solve for x
    x = 2,879,874,291.28/61,043.50
  6. Step 6: Final answer
    x = 47,177.41

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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.