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Finding the Fourth Proportional to 26,499.76, 39,749.64 and 8,981.92

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Solution

The fourth proportional to 26,499.76, 39,749.64 and 8,981.92 is: 13,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,499.76 : 39,749.64 = 8,981.92 : x
  2. Step 2: Convert to fraction form
    26,499.76/39,749.64 = 8,981.92/x
  3. Step 3: Cross multiply
    26,499.76x = 39,749.64 × 8,981.92
  4. Step 4: Simplify right side
    26,499.76x = 357,028,086.51
  5. Step 5: Solve for x
    x = 357,028,086.51/26,499.76
  6. Step 6: Final answer
    x = 13,472.88

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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.