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Finding the Fourth Proportional to 8,399.55, 11,596.35 and 7,465.38

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Solution

The fourth proportional to 8,399.55, 11,596.35 and 7,465.38 is: 10,306.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.55 : 11,596.35 = 7,465.38 : x
  2. Step 2: Convert to fraction form
    8,399.55/11,596.35 = 7,465.38/x
  3. Step 3: Cross multiply
    8,399.55x = 11,596.35 × 7,465.38
  4. Step 4: Simplify right side
    8,399.55x = 86,571,159.36
  5. Step 5: Solve for x
    x = 86,571,159.36/8,399.55
  6. Step 6: Final answer
    x = 10,306.64

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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.