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Finding the Fourth Proportional to 18,461.34, 25,467.12 and 12,495.24

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Solution

The fourth proportional to 18,461.34, 25,467.12 and 12,495.24 is: 17,236.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.34 : 25,467.12 = 12,495.24 : x
  2. Step 2: Convert to fraction form
    18,461.34/25,467.12 = 12,495.24/x
  3. Step 3: Cross multiply
    18,461.34x = 25,467.12 × 12,495.24
  4. Step 4: Simplify right side
    18,461.34x = 318,217,776.51
  5. Step 5: Solve for x
    x = 318,217,776.51/18,461.34
  6. Step 6: Final answer
    x = 17,236.98

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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.