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Finding the Fourth Proportional to 18,585.89, 25,613.10 and 18,244.29

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Solution

The fourth proportional to 18,585.89, 25,613.10 and 18,244.29 is: 25,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585.89 : 25,613.10 = 18,244.29 : x
  2. Step 2: Convert to fraction form
    18,585.89/25,613.10 = 18,244.29/x
  3. Step 3: Cross multiply
    18,585.89x = 25,613.10 × 18,244.29
  4. Step 4: Simplify right side
    18,585.89x = 467,292,824.20
  5. Step 5: Solve for x
    x = 467,292,824.20/18,585.89
  6. Step 6: Final answer
    x = 25,142.35

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Half scale
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Double scale
Find fourth proportional to 18,586.89, 25,614.48 and 18,245.29
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.