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Finding the Fourth Proportional to 29,455.40, 44,166.90 and 12,812.60

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Solution

The fourth proportional to 29,455.40, 44,166.90 and 12,812.60 is: 19,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,455.40 : 44,166.90 = 12,812.60 : x
  2. Step 2: Convert to fraction form
    29,455.40/44,166.90 = 12,812.60/x
  3. Step 3: Cross multiply
    29,455.40x = 44,166.90 × 12,812.60
  4. Step 4: Simplify right side
    29,455.40x = 565,892,822.94
  5. Step 5: Solve for x
    x = 565,892,822.94/29,455.40
  6. Step 6: Final answer
    x = 19,211.85

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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.