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Finding the Fourth Proportional to 86,730.92, 130,059.60 and 27,550.76

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Solution

The fourth proportional to 86,730.92, 130,059.60 and 27,550.76 is: 41,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,730.92 : 130,059.60 = 27,550.76 : x
  2. Step 2: Convert to fraction form
    86,730.92/130,059.60 = 27,550.76/x
  3. Step 3: Cross multiply
    86,730.92x = 130,059.60 × 27,550.76
  4. Step 4: Simplify right side
    86,730.92x = 3,583,240,825.30
  5. Step 5: Solve for x
    x = 3,583,240,825.30/86,730.92
  6. Step 6: Final answer
    x = 41,314.46

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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.