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Finding the Fourth Proportional to 14,907.85, 20,571.88 and 8,534.44

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Solution

The fourth proportional to 14,907.85, 20,571.88 and 8,534.44 is: 11,776.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,907.85 : 20,571.88 = 8,534.44 : x
  2. Step 2: Convert to fraction form
    14,907.85/20,571.88 = 8,534.44/x
  3. Step 3: Cross multiply
    14,907.85x = 20,571.88 × 8,534.44
  4. Step 4: Simplify right side
    14,907.85x = 175,569,475.55
  5. Step 5: Solve for x
    x = 175,569,475.55/14,907.85
  6. Step 6: Final answer
    x = 11,776.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.