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Finding the Fourth Proportional to 12,492.96, 17,240.99 and 6,828.23

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Solution

The fourth proportional to 12,492.96, 17,240.99 and 6,828.23 is: 9,423.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.96 : 17,240.99 = 6,828.23 : x
  2. Step 2: Convert to fraction form
    12,492.96/17,240.99 = 6,828.23/x
  3. Step 3: Cross multiply
    12,492.96x = 17,240.99 × 6,828.23
  4. Step 4: Simplify right side
    12,492.96x = 117,725,324.80
  5. Step 5: Solve for x
    x = 117,725,324.80/12,492.96
  6. Step 6: Final answer
    x = 9,423.33

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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.