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Finding the Fourth Proportional to 86,907.44, 130,362.20 and 27,742.80

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Solution

The fourth proportional to 86,907.44, 130,362.20 and 27,742.80 is: 41,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,907.44 : 130,362.20 = 27,742.80 : x
  2. Step 2: Convert to fraction form
    86,907.44/130,362.20 = 27,742.80/x
  3. Step 3: Cross multiply
    86,907.44x = 130,362.20 × 27,742.80
  4. Step 4: Simplify right side
    86,907.44x = 3,616,612,442.16
  5. Step 5: Solve for x
    x = 3,616,612,442.16/86,907.44
  6. Step 6: Final answer
    x = 41,614.53

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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.