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Finding the Fourth Proportional to 18,302.99, 25,257.06 and 10,126.10

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Solution

The fourth proportional to 18,302.99, 25,257.06 and 10,126.10 is: 13,973.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.99 : 25,257.06 = 10,126.10 : x
  2. Step 2: Convert to fraction form
    18,302.99/25,257.06 = 10,126.10/x
  3. Step 3: Cross multiply
    18,302.99x = 25,257.06 × 10,126.10
  4. Step 4: Simplify right side
    18,302.99x = 255,755,578.41
  5. Step 5: Solve for x
    x = 255,755,578.41/18,302.99
  6. Step 6: Final answer
    x = 13,973.44

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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.