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Finding the Fourth Proportional to 28,861.60, 43,251.90 and 22,948.60

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Solution

The fourth proportional to 28,861.60, 43,251.90 and 22,948.60 is: 34,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.60 : 43,251.90 = 22,948.60 : x
  2. Step 2: Convert to fraction form
    28,861.60/43,251.90 = 22,948.60/x
  3. Step 3: Cross multiply
    28,861.60x = 43,251.90 × 22,948.60
  4. Step 4: Simplify right side
    28,861.60x = 992,570,552.34
  5. Step 5: Solve for x
    x = 992,570,552.34/28,861.60
  6. Step 6: Final answer
    x = 34,390.70

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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.