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Finding the Fourth Proportional to 86,752.80, 130,132.80 and 27,586.80

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Solution

The fourth proportional to 86,752.80, 130,132.80 and 27,586.80 is: 41,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,752.80 : 130,132.80 = 27,586.80 : x
  2. Step 2: Convert to fraction form
    86,752.80/130,132.80 = 27,586.80/x
  3. Step 3: Cross multiply
    86,752.80x = 130,132.80 × 27,586.80
  4. Step 4: Simplify right side
    86,752.80x = 3,589,947,527.04
  5. Step 5: Solve for x
    x = 3,589,947,527.04/86,752.80
  6. Step 6: Final answer
    x = 41,381.34

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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.