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Finding the Fourth Proportional to 18,551.40, 25,601.25 and 10,053.69

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Solution

The fourth proportional to 18,551.40, 25,601.25 and 10,053.69 is: 13,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.40 : 25,601.25 = 10,053.69 : x
  2. Step 2: Convert to fraction form
    18,551.40/25,601.25 = 10,053.69/x
  3. Step 3: Cross multiply
    18,551.40x = 25,601.25 × 10,053.69
  4. Step 4: Simplify right side
    18,551.40x = 257,387,031.11
  5. Step 5: Solve for x
    x = 257,387,031.11/18,551.40
  6. Step 6: Final answer
    x = 13,874.26

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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.