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Finding the Fourth Proportional to 26,698.42, 40,043.42 and 8,928.94

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Solution

The fourth proportional to 26,698.42, 40,043.42 and 8,928.94 is: 13,392.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,698.42 : 40,043.42 = 8,928.94 : x
  2. Step 2: Convert to fraction form
    26,698.42/40,043.42 = 8,928.94/x
  3. Step 3: Cross multiply
    26,698.42x = 40,043.42 × 8,928.94
  4. Step 4: Simplify right side
    26,698.42x = 357,545,049.71
  5. Step 5: Solve for x
    x = 357,545,049.71/26,698.42
  6. Step 6: Final answer
    x = 13,392.00

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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.