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Finding the Fourth Proportional to 7,955.19, 10,978.02 and 4,418.37

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Solution

The fourth proportional to 7,955.19, 10,978.02 and 4,418.37 is: 6,097.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.19 : 10,978.02 = 4,418.37 : x
  2. Step 2: Convert to fraction form
    7,955.19/10,978.02 = 4,418.37/x
  3. Step 3: Cross multiply
    7,955.19x = 10,978.02 × 4,418.37
  4. Step 4: Simplify right side
    7,955.19x = 48,504,954.23
  5. Step 5: Solve for x
    x = 48,504,954.23/7,955.19
  6. Step 6: Final answer
    x = 6,097.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.