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Finding the Fourth Proportional to 66,393.74, 99,530.33 and 33,123.98

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Solution

The fourth proportional to 66,393.74, 99,530.33 and 33,123.98 is: 49,655.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,393.74 : 99,530.33 = 33,123.98 : x
  2. Step 2: Convert to fraction form
    66,393.74/99,530.33 = 33,123.98/x
  3. Step 3: Cross multiply
    66,393.74x = 99,530.33 × 33,123.98
  4. Step 4: Simplify right side
    66,393.74x = 3,296,839,997.04
  5. Step 5: Solve for x
    x = 3,296,839,997.04/66,393.74
  6. Step 6: Final answer
    x = 49,655.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.