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Finding the Fourth Proportional to 18,575.33, 25,630.02 and 11,020.46

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Solution

The fourth proportional to 18,575.33, 25,630.02 and 11,020.46 is: 15,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.33 : 25,630.02 = 11,020.46 : x
  2. Step 2: Convert to fraction form
    18,575.33/25,630.02 = 11,020.46/x
  3. Step 3: Cross multiply
    18,575.33x = 25,630.02 × 11,020.46
  4. Step 4: Simplify right side
    18,575.33x = 282,454,482.06
  5. Step 5: Solve for x
    x = 282,454,482.06/18,575.33
  6. Step 6: Final answer
    x = 15,205.90

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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.