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Finding the Fourth Proportional to 66,502.60, 99,758.40 and 27,060.40

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Solution

The fourth proportional to 66,502.60, 99,758.40 and 27,060.40 is: 40,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,502.60 : 99,758.40 = 27,060.40 : x
  2. Step 2: Convert to fraction form
    66,502.60/99,758.40 = 27,060.40/x
  3. Step 3: Cross multiply
    66,502.60x = 99,758.40 × 27,060.40
  4. Step 4: Simplify right side
    66,502.60x = 2,699,502,207.36
  5. Step 5: Solve for x
    x = 2,699,502,207.36/66,502.60
  6. Step 6: Final answer
    x = 40,592.43

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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.