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Finding the Fourth Proportional to 27,586.80, 38,660.40 and 27,586.80

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Solution

The fourth proportional to 27,586.80, 38,660.40 and 27,586.80 is: 38,660.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,586.80 : 38,660.40 = 27,586.80 : x
  2. Step 2: Convert to fraction form
    27,586.80/38,660.40 = 27,586.80/x
  3. Step 3: Cross multiply
    27,586.80x = 38,660.40 × 27,586.80
  4. Step 4: Simplify right side
    27,586.80x = 1,066,516,722.72
  5. Step 5: Solve for x
    x = 1,066,516,722.72/27,586.80
  6. Step 6: Final answer
    x = 38,660.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.