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Finding the Fourth Proportional to 61,149.63, 84,387.34 and 36,947.24

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Solution

The fourth proportional to 61,149.63, 84,387.34 and 36,947.24 is: 50,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,149.63 : 84,387.34 = 36,947.24 : x
  2. Step 2: Convert to fraction form
    61,149.63/84,387.34 = 36,947.24/x
  3. Step 3: Cross multiply
    61,149.63x = 84,387.34 × 36,947.24
  4. Step 4: Simplify right side
    61,149.63x = 3,117,879,348.56
  5. Step 5: Solve for x
    x = 3,117,879,348.56/61,149.63
  6. Step 6: Final answer
    x = 50,987.70

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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.