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Finding the Fourth Proportional to 21,675.67, 32,515.67 and 5,880.95

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Solution

The fourth proportional to 21,675.67, 32,515.67 and 5,880.95 is: 8,822.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,675.67 : 32,515.67 = 5,880.95 : x
  2. Step 2: Convert to fraction form
    21,675.67/32,515.67 = 5,880.95/x
  3. Step 3: Cross multiply
    21,675.67x = 32,515.67 × 5,880.95
  4. Step 4: Simplify right side
    21,675.67x = 191,223,029.49
  5. Step 5: Solve for x
    x = 191,223,029.49/21,675.67
  6. Step 6: Final answer
    x = 8,822.01

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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.