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Finding the Fourth Proportional to 29,968.70, 44,955.26 and 8,620.55

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Solution

The fourth proportional to 29,968.70, 44,955.26 and 8,620.55 is: 12,931.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,968.70 : 44,955.26 = 8,620.55 : x
  2. Step 2: Convert to fraction form
    29,968.70/44,955.26 = 8,620.55/x
  3. Step 3: Cross multiply
    29,968.70x = 44,955.26 × 8,620.55
  4. Step 4: Simplify right side
    29,968.70x = 387,539,200.53
  5. Step 5: Solve for x
    x = 387,539,200.53/29,968.70
  6. Step 6: Final answer
    x = 12,931.46

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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.