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Finding the Fourth Proportional to 66,463.74, 99,655.44 and 26,488.88

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Solution

The fourth proportional to 66,463.74, 99,655.44 and 26,488.88 is: 39,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,463.74 : 99,655.44 = 26,488.88 : x
  2. Step 2: Convert to fraction form
    66,463.74/99,655.44 = 26,488.88/x
  3. Step 3: Cross multiply
    66,463.74x = 99,655.44 × 26,488.88
  4. Step 4: Simplify right side
    66,463.74x = 2,639,760,991.51
  5. Step 5: Solve for x
    x = 2,639,760,991.51/66,463.74
  6. Step 6: Final answer
    x = 39,717.31

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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.