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Finding the Fourth Proportional to 18,530.56, 25,559.04 and 11,460.34

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Solution

The fourth proportional to 18,530.56, 25,559.04 and 11,460.34 is: 15,807.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.56 : 25,559.04 = 11,460.34 : x
  2. Step 2: Convert to fraction form
    18,530.56/25,559.04 = 11,460.34/x
  3. Step 3: Cross multiply
    18,530.56x = 25,559.04 × 11,460.34
  4. Step 4: Simplify right side
    18,530.56x = 292,915,288.47
  5. Step 5: Solve for x
    x = 292,915,288.47/18,530.56
  6. Step 6: Final answer
    x = 15,807.15

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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.