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Finding the Fourth Proportional to 7,955.83, 10,979.70 and 4,419.26

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Solution

The fourth proportional to 7,955.83, 10,979.70 and 4,419.26 is: 6,098.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.83 : 10,979.70 = 4,419.26 : x
  2. Step 2: Convert to fraction form
    7,955.83/10,979.70 = 4,419.26/x
  3. Step 3: Cross multiply
    7,955.83x = 10,979.70 × 4,419.26
  4. Step 4: Simplify right side
    7,955.83x = 48,522,149.02
  5. Step 5: Solve for x
    x = 48,522,149.02/7,955.83
  6. Step 6: Final answer
    x = 6,098.94

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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.