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Finding the Fourth Proportional to 19,498.92, 29,252.70 and 9,105

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Solution

The fourth proportional to 19,498.92, 29,252.70 and 9,105 is: 13,659.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,498.92 : 29,252.70 = 9,105 : x
  2. Step 2: Convert to fraction form
    19,498.92/29,252.70 = 9,105/x
  3. Step 3: Cross multiply
    19,498.92x = 29,252.70 × 9,105
  4. Step 4: Simplify right side
    19,498.92x = 266,345,833.50
  5. Step 5: Solve for x
    x = 266,345,833.50/19,498.92
  6. Step 6: Final answer
    x = 13,659.52

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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.