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Finding the Fourth Proportional to 29,861.60, 44,792.40 and 20,530.40

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Solution

The fourth proportional to 29,861.60, 44,792.40 and 20,530.40 is: 30,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,861.60 : 44,792.40 = 20,530.40 : x
  2. Step 2: Convert to fraction form
    29,861.60/44,792.40 = 20,530.40/x
  3. Step 3: Cross multiply
    29,861.60x = 44,792.40 × 20,530.40
  4. Step 4: Simplify right side
    29,861.60x = 919,605,888.96
  5. Step 5: Solve for x
    x = 919,605,888.96/29,861.60
  6. Step 6: Final answer
    x = 30,795.60

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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.