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Finding the Fourth Proportional to 19,325.76, 26,659.80 and 11,362.92

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Solution

The fourth proportional to 19,325.76, 26,659.80 and 11,362.92 is: 15,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,325.76 : 26,659.80 = 11,362.92 : x
  2. Step 2: Convert to fraction form
    19,325.76/26,659.80 = 11,362.92/x
  3. Step 3: Cross multiply
    19,325.76x = 26,659.80 × 11,362.92
  4. Step 4: Simplify right side
    19,325.76x = 302,933,174.62
  5. Step 5: Solve for x
    x = 302,933,174.62/19,325.76
  6. Step 6: Final answer
    x = 15,675.10

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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.