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Finding the Fourth Proportional to 9,559, 13,191.42 and 5,367.16

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Solution

The fourth proportional to 9,559, 13,191.42 and 5,367.16 is: 7,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,559 : 13,191.42 = 5,367.16 : x
  2. Step 2: Convert to fraction form
    9,559/13,191.42 = 5,367.16/x
  3. Step 3: Cross multiply
    9,559x = 13,191.42 × 5,367.16
  4. Step 4: Simplify right side
    9,559x = 70,800,461.77
  5. Step 5: Solve for x
    x = 70,800,461.77/9,559
  6. Step 6: Final answer
    x = 7,406.68

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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.