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Finding the Fourth Proportional to 66,973, 100,461.42 and 17,725

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Solution

The fourth proportional to 66,973, 100,461.42 and 17,725 is: 26,588.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,973 : 100,461.42 = 17,725 : x
  2. Step 2: Convert to fraction form
    66,973/100,461.42 = 17,725/x
  3. Step 3: Cross multiply
    66,973x = 100,461.42 × 17,725
  4. Step 4: Simplify right side
    66,973x = 1,780,678,669.50
  5. Step 5: Solve for x
    x = 1,780,678,669.50/66,973
  6. Step 6: Final answer
    x = 26,588.01

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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.