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Finding the Fourth Proportional to 21,745.34, 32,615.94 and 6,950.28

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Solution

The fourth proportional to 21,745.34, 32,615.94 and 6,950.28 is: 10,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,745.34 : 32,615.94 = 6,950.28 : x
  2. Step 2: Convert to fraction form
    21,745.34/32,615.94 = 6,950.28/x
  3. Step 3: Cross multiply
    21,745.34x = 32,615.94 × 6,950.28
  4. Step 4: Simplify right side
    21,745.34x = 226,689,915.46
  5. Step 5: Solve for x
    x = 226,689,915.46/21,745.34
  6. Step 6: Final answer
    x = 10,424.76

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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.