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Finding the Fourth Proportional to 25,506.76, 35,189.74 and 18,808.37

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Solution

The fourth proportional to 25,506.76, 35,189.74 and 18,808.37 is: 25,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,506.76 : 35,189.74 = 18,808.37 : x
  2. Step 2: Convert to fraction form
    25,506.76/35,189.74 = 18,808.37/x
  3. Step 3: Cross multiply
    25,506.76x = 35,189.74 × 18,808.37
  4. Step 4: Simplify right side
    25,506.76x = 661,861,650.12
  5. Step 5: Solve for x
    x = 661,861,650.12/25,506.76
  6. Step 6: Final answer
    x = 25,948.48

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Half scale
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Double scale
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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.