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Finding the Fourth Proportional to 21,567.16, 32,354 and 6,774.69

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Solution

The fourth proportional to 21,567.16, 32,354 and 6,774.69 is: 10,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.16 : 32,354 = 6,774.69 : x
  2. Step 2: Convert to fraction form
    21,567.16/32,354 = 6,774.69/x
  3. Step 3: Cross multiply
    21,567.16x = 32,354 × 6,774.69
  4. Step 4: Simplify right side
    21,567.16x = 219,188,158.49
  5. Step 5: Solve for x
    x = 219,188,158.49/21,567.16
  6. Step 6: Final answer
    x = 10,163.05

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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.