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Finding the Fourth Proportional to 26,585.99, 39,868.76 and 8,811.24

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Solution

The fourth proportional to 26,585.99, 39,868.76 and 8,811.24 is: 13,213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,585.99 : 39,868.76 = 8,811.24 : x
  2. Step 2: Convert to fraction form
    26,585.99/39,868.76 = 8,811.24/x
  3. Step 3: Cross multiply
    26,585.99x = 39,868.76 × 8,811.24
  4. Step 4: Simplify right side
    26,585.99x = 351,293,168.81
  5. Step 5: Solve for x
    x = 351,293,168.81/26,585.99
  6. Step 6: Final answer
    x = 13,213.47

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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.