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Finding the Fourth Proportional to 21,848.84, 32,745.84 and 9,354.20

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Solution

The fourth proportional to 21,848.84, 32,745.84 and 9,354.20 is: 14,019.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,848.84 : 32,745.84 = 9,354.20 : x
  2. Step 2: Convert to fraction form
    21,848.84/32,745.84 = 9,354.20/x
  3. Step 3: Cross multiply
    21,848.84x = 32,745.84 × 9,354.20
  4. Step 4: Simplify right side
    21,848.84x = 306,311,136.53
  5. Step 5: Solve for x
    x = 306,311,136.53/21,848.84
  6. Step 6: Final answer
    x = 14,019.56

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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.