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Finding the Fourth Proportional to 9,793.60, 13,515.26 and 5,317.40

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Solution

The fourth proportional to 9,793.60, 13,515.26 and 5,317.40 is: 7,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,793.60 : 13,515.26 = 5,317.40 : x
  2. Step 2: Convert to fraction form
    9,793.60/13,515.26 = 5,317.40/x
  3. Step 3: Cross multiply
    9,793.60x = 13,515.26 × 5,317.40
  4. Step 4: Simplify right side
    9,793.60x = 71,866,043.52
  5. Step 5: Solve for x
    x = 71,866,043.52/9,793.60
  6. Step 6: Final answer
    x = 7,338.06

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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.