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Finding the Fourth Proportional to 15,940.40, 23,907.84 and 4,844.40

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Solution

The fourth proportional to 15,940.40, 23,907.84 and 4,844.40 is: 7,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.40 : 23,907.84 = 4,844.40 : x
  2. Step 2: Convert to fraction form
    15,940.40/23,907.84 = 4,844.40/x
  3. Step 3: Cross multiply
    15,940.40x = 23,907.84 × 4,844.40
  4. Step 4: Simplify right side
    15,940.40x = 115,819,140.10
  5. Step 5: Solve for x
    x = 115,819,140.10/15,940.40
  6. Step 6: Final answer
    x = 7,265.76

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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.