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Finding the Fourth Proportional to 61,043.80, 84,238.47 and 33,818.76

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Solution

The fourth proportional to 61,043.80, 84,238.47 and 33,818.76 is: 46,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,043.80 : 84,238.47 = 33,818.76 : x
  2. Step 2: Convert to fraction form
    61,043.80/84,238.47 = 33,818.76/x
  3. Step 3: Cross multiply
    61,043.80x = 84,238.47 × 33,818.76
  4. Step 4: Simplify right side
    61,043.80x = 2,848,840,599.70
  5. Step 5: Solve for x
    x = 2,848,840,599.70/61,043.80
  6. Step 6: Final answer
    x = 46,668.80

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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.