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Finding the Fourth Proportional to 18,572.82, 27,852.30 and 7,475.76

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Solution

The fourth proportional to 18,572.82, 27,852.30 and 7,475.76 is: 11,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,572.82 : 27,852.30 = 7,475.76 : x
  2. Step 2: Convert to fraction form
    18,572.82/27,852.30 = 7,475.76/x
  3. Step 3: Cross multiply
    18,572.82x = 27,852.30 × 7,475.76
  4. Step 4: Simplify right side
    18,572.82x = 208,217,110.25
  5. Step 5: Solve for x
    x = 208,217,110.25/18,572.82
  6. Step 6: Final answer
    x = 11,210.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.