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Finding the Fourth Proportional to 13,592.66, 18,715.24 and 12,347.09

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Solution

The fourth proportional to 13,592.66, 18,715.24 and 12,347.09 is: 17,000.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.66 : 18,715.24 = 12,347.09 : x
  2. Step 2: Convert to fraction form
    13,592.66/18,715.24 = 12,347.09/x
  3. Step 3: Cross multiply
    13,592.66x = 18,715.24 × 12,347.09
  4. Step 4: Simplify right side
    13,592.66x = 231,078,779.96
  5. Step 5: Solve for x
    x = 231,078,779.96/13,592.66
  6. Step 6: Final answer
    x = 17,000.27

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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.