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Finding the Fourth Proportional to 18,445.64, 27,670.18 and 7,349.64

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Solution

The fourth proportional to 18,445.64, 27,670.18 and 7,349.64 is: 11,025.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.64 : 27,670.18 = 7,349.64 : x
  2. Step 2: Convert to fraction form
    18,445.64/27,670.18 = 7,349.64/x
  3. Step 3: Cross multiply
    18,445.64x = 27,670.18 × 7,349.64
  4. Step 4: Simplify right side
    18,445.64x = 203,365,861.74
  5. Step 5: Solve for x
    x = 203,365,861.74/18,445.64
  6. Step 6: Final answer
    x = 11,025.15

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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.