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Finding the Fourth Proportional to 14,785.93, 20,401.54 and 8,497.09

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Solution

The fourth proportional to 14,785.93, 20,401.54 and 8,497.09 is: 11,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.93 : 20,401.54 = 8,497.09 : x
  2. Step 2: Convert to fraction form
    14,785.93/20,401.54 = 8,497.09/x
  3. Step 3: Cross multiply
    14,785.93x = 20,401.54 × 8,497.09
  4. Step 4: Simplify right side
    14,785.93x = 173,353,721.52
  5. Step 5: Solve for x
    x = 173,353,721.52/14,785.93
  6. Step 6: Final answer
    x = 11,724.24

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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.