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Finding the Fourth Proportional to 18,630.51, 25,706.07 and 13,595.91

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Solution

The fourth proportional to 18,630.51, 25,706.07 and 13,595.91 is: 18,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.51 : 25,706.07 = 13,595.91 : x
  2. Step 2: Convert to fraction form
    18,630.51/25,706.07 = 13,595.91/x
  3. Step 3: Cross multiply
    18,630.51x = 25,706.07 × 13,595.91
  4. Step 4: Simplify right side
    18,630.51x = 349,497,414.17
  5. Step 5: Solve for x
    x = 349,497,414.17/18,630.51
  6. Step 6: Final answer
    x = 18,759.41

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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.