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Finding the Fourth Proportional to 13,425.54, 18,492.48 and 11,298.48

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Solution

The fourth proportional to 13,425.54, 18,492.48 and 11,298.48 is: 15,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.54 : 18,492.48 = 11,298.48 : x
  2. Step 2: Convert to fraction form
    13,425.54/18,492.48 = 11,298.48/x
  3. Step 3: Cross multiply
    13,425.54x = 18,492.48 × 11,298.48
  4. Step 4: Simplify right side
    13,425.54x = 208,936,915.43
  5. Step 5: Solve for x
    x = 208,936,915.43/13,425.54
  6. Step 6: Final answer
    x = 15,562.65

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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.