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Finding the Fourth Proportional to 66,952.78, 100,429.86 and 17,032.90

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Solution

The fourth proportional to 66,952.78, 100,429.86 and 17,032.90 is: 25,549.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,952.78 : 100,429.86 = 17,032.90 : x
  2. Step 2: Convert to fraction form
    66,952.78/100,429.86 = 17,032.90/x
  3. Step 3: Cross multiply
    66,952.78x = 100,429.86 × 17,032.90
  4. Step 4: Simplify right side
    66,952.78x = 1,710,611,762.39
  5. Step 5: Solve for x
    x = 1,710,611,762.39/66,952.78
  6. Step 6: Final answer
    x = 25,549.53

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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.