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Finding the Fourth Proportional to 18,527.80, 27,788.78 and 6,047.76

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Solution

The fourth proportional to 18,527.80, 27,788.78 and 6,047.76 is: 9,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,527.80 : 27,788.78 = 6,047.76 : x
  2. Step 2: Convert to fraction form
    18,527.80/27,788.78 = 6,047.76/x
  3. Step 3: Cross multiply
    18,527.80x = 27,788.78 × 6,047.76
  4. Step 4: Simplify right side
    18,527.80x = 168,059,872.13
  5. Step 5: Solve for x
    x = 168,059,872.13/18,527.80
  6. Step 6: Final answer
    x = 9,070.69

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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.