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Finding the Fourth Proportional to 17,653.79, 26,491.85 and 9,867.71

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Solution

The fourth proportional to 17,653.79, 26,491.85 and 9,867.71 is: 14,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.79 : 26,491.85 = 9,867.71 : x
  2. Step 2: Convert to fraction form
    17,653.79/26,491.85 = 9,867.71/x
  3. Step 3: Cross multiply
    17,653.79x = 26,491.85 × 9,867.71
  4. Step 4: Simplify right side
    17,653.79x = 261,413,893.16
  5. Step 5: Solve for x
    x = 261,413,893.16/17,653.79
  6. Step 6: Final answer
    x = 14,807.81

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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.